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Allergy Testing and Immunotherapy in Los Angeles, California

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In Los Angeles, California, allergens like ragweed, dust mites, and mold are common. Allergy immunotherapy can help build resistance against these allergens, providing relief from allergy symptoms and improving quality of life.

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Penicillin Allergy: Symptoms, Diagnosis, Treatment

Learn penicillin allergy symptoms, get expert diagnosis and treatments, plus prevention tips to manage and ease your allergic risks.

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Allergy Clinic

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50,000+
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Reviewed by Curex clinical team

Dr. Chet Tharpe, M.D..

Updated May 3, 2025

Key Symptoms of Penicillins Allergy

Skin Rash

An allergic reaction to penicillins may cause a skin rash that is often itchy and uncomfortable. This is the most common symptom, appearing as hives or bumps on the skin.

Breathing Difficulty

The person may face difficulty in breathing due to an allergic reaction to penicillins. This can range from mild shortness of breath or wheezing to severe difficulty breathing and a feeling of tightness in the chest.

Swelling

Swelling or edema can occur, particularly in the face, lips, tongue, or throat. This can result in difficulty swallowing or breathing, and is a serious symptom needing immediate medical attention.

Anaphylaxis

In severe cases, penicillin allergy can result in anaphylaxis, a life-threatening reaction that can cause a rapid, weak pulse; nausea and vomiting; loss of consciousness; and can interfere with breathing and heart function.

Fever

Some people may develop a fever as a result of an allergic reaction to penicillins. This is a sign that the body is trying to fight off an invader and can be accompanied by other systemic symptoms.

Joint Pain

Joints may become inflamed and painful as a result of an allergic reaction to penicillins. This can range from mild discomfort to severe pain that can interfere with daily activity.

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How to Recognize if You're Allergic to Penicillins

The symptoms of a penicillin allergy can range from mild to severe, and they may occur immediately or begin a few hours or days after starting the medication. Here is what you should look for:

Identify Immediate Allergic Reactions

Skin Rash or Hives: An itchy skin rash or hives might appear on the body.
Wheezing or Difficulty Breathing: Some people may find it hard to breathe if they have an allergic reaction to penicillin.
Swelling: Swelling of the face, tongue, or lips can occur if you're allergic to penicillin.
Dizziness: A sudden drop in blood pressure might make you feel lightheaded or faint.
Anaphylaxis: In severe cases, you might experience anaphylaxis, a life-threatening allergic reaction that causes difficulty breathing and a sudden drop in blood pressure.

Observe Delayed Allergic Reactions

Delayed Rash: A red or purple rash can appear a few days later, and it might spread across the body.
Drug Fever: You might develop a fever in response to the penicillin.
Serum Sickness: In rare cases, you might experience symptoms similar to those of the flu, such as joint pain, fever, and body aches.

If you display any of these symptoms after consuming penicillin, contact your healthcare provider immediately for advice. It's crucial to rule out other causes for these symptoms which might not be related to a penicillin allergy.

Clinical Support

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Dr. Neeta Ogden, MD

Curex is poised to revolutionize the way allergies are treated in America, expanding access to clinical care and treatments that can meaningfully improve patients quality of life.

Dr. Ravi Patel, VP Telemedicine

At Curex, our mission is to help people improve their health and quality of life by understanding their allergies and treating them at their source.We provide more than individualized prescription treatments; we provide individualized care.

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Immunotherapy made simple. We enable patients to receive personalized allergy care on their own time. No more waiting rooms.

Dr. Chet Tharpe, Medical Director

Curex has set the standard for the virtual allergy experience. From the comfort of their home, patients nationwide are able to receive a personalized treatment plan from an experienced clinician, aimed at treating the source of their allergies, not just the symptoms.

Kayla Mardaga, NP

Curex offers convenient at-home allergy testing options. Our goal is to determine if a patient would benefit from immunotherapy and then customize a treatment plan that can reduce both the symptoms and the reliance on allergy medications.

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When Penicillins Grows and Its Impacts

Where Penicillins Grows Across the USA?

Don't wait until next season. Start now and enjoy a life free from allergies!

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Diagnostic of Penicillins Allergy with Curex

At-Home Automatic Test Kit

Receive a painless automatic blood collector at-home. Takes less than 5 minutes. Ship it back when done

In-Lab Test

Take your test at a local lab location. (often available same day)

Concierge At-Home Test

A medical professional comes to your home or office for a quick blood draw.(schedule 5-7 days in advance)

Tips for Avoiding Penicillins Allergy

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Understand Your Allergy

Knowing the specifics of your allergy is crucial. If you had an allergic reaction to penicillin, it means your immune system has produced antibodies against the drug. All future exposures to the drug may lead to an allergic reaction, which can be severe or life-threatening. Therefore, maintain a list of all the medications you are allergic to and always inform healthcare providers about it.

Communication with Healthcare Providers

Always inform your healthcare providers that you are allergic to penicillin. This includes doctors, nurses, dentists and pharmacists. Even if you are undergoing a minor procedure, or just getting a prescription refill, let them know about your allergy. This can help them make safe treatment choices for you.

Wear a Medical Alert Tag

Consider investing in a medical alert bracelet or necklace that states you are allergic to penicillin. In case of an emergency, this could save your life. Healthcare professionals are trained to look for these when they are providing treatment. It can speak for you when you are unable to do so.

Avoid Self-Medication

Never self-medicate, especially if you have a known penicillin allergy. Many over-the-counter drugs may contain penicillin or a similar antibiotic. It’s very dangerous, and potentially life-threatening, to take these drugs if you’re allergic to penicillin. Always seek professional medical advice when it comes to medications.

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Prevents allergies long term

At-home treatment saves time

Treatment taken daily under the tongue

Evaluation & allergy test at home

Talk or text with your clinician, as needed

$49/month (copays may apply)

ALLERGY SHOTS

Prevents allergies long term

Commute to clinic every week

Treatment injected weekly by syringe

Evaluation and testing in the clinic

Clinical visits require scheduling

Surprise insurance bills and high copays

Diet to Ease Penicillins Allergy Symptoms

Follow Beneficial Dietary Changes

While it's crucial to understand that food cannot cure penicillin allergy, certain dietary changes can help strengthen your immune system and its response to allergies in general. These include:

Fruits and Vegetables: Loaded with antioxidants, they can help boost your immunity. A strong immune system may help you handle or recover from allergic reactions better.
Omega-3 Fatty Acids: Foods rich in these healthy fats like fish, walnuts, and flaxseeds are known to have anti-inflammatory properties that can mitigate allergy symptoms.
Probiotic-rich Foods: Probiotics help maintain a healthy gut, which is crucial for keeping the immune system strong. Yogurt, kefir, and fermented foods are excellent sources.
Green Tea: It contains a natural antihistamine (epigallocatechin gallate or EGCG) that can help by easing allergy symptoms.

Remember, a balanced diet promoting overall health will aid in making your body more resilient and improve its capacity to handle allergens, including penicillins. However, they are NOT a substitute for necessary medical treatment.

What Food Worsens Penicillins Allergy

There is no direct food which contributes towards the worsening of Penicillin allergy symptoms. However, any food that could potentially cause an allergic reaction or increase inflammation in the body should be consumed mindfully.

Consider Avoiding or Consuming in Moderation the Following Foods:

Shellfish and Fish: Some people may have allergies to shellfish and fish which may interact negatively with Penicillin allergy symptoms.
Dairy Products: Due to the common sensitivity towards lactose, dairy products may trigger or amplify allergic reactions.
Eggs: Eggs are known allergens and could potentially worsen Penicillin allergy symptoms.
Nuts: Many people have allergies towards nuts which could interact with your Penicillin allergy.

Nevertheless, it is always crucial to consult a healthcare professional before making significant dietary changes.

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Allergy FAQ

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Can a person with Penicillin allergy use cephalosporins safely?

Penicillin Allergy and Cephalosporins

People with a penicillin allergy may have a cross-reactivity risk with cephalosporins, though recent studies suggest it is lower than previously believed.

Approximately 2% of those allergic to penicillin may also react to cephalosporins.

It's crucial to consult a healthcare provider to assess the risk based on allergy history and the specific cephalosporin.

What are alternative antibiotics for someone with a Penicillin allergy?

Alternative Antibiotics for Penicillin Allergy

**Cephalosporins**: Often tolerated by those with mild penicillin allergies, though cross-reactivity may occur.

**Macrolides**: Alternatives like azithromycin or clarithromycin are commonly used.

**Clindamycin**: Effective for skin and soft tissue infections.

**Fluoroquinolones**: Typically used for respiratory and urinary tract infections, e.g., levofloxacin.

**Tetracyclines**: Doxycycline for acne and other infections.

Does Penicillin allergy in childhood persist into adulthood?

Understanding Penicillin Allergy Persistence

Many children labeled with a penicillin allergy may not retain this allergy into adulthood. Studies suggest that up to 80-90% of individuals outgrow their penicillin allergy over time.

Misdiagnosis during childhood is common, with adverse reactions often mistaken for allergies. Accurate diagnosis through allergy testing is recommended as individuals age.

Regular re-evaluation of allergy status is important, especially before prescribing antibiotics, as it can help prevent unnecessary avoidance of penicillin.

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Treatment prescribed
by clinician

Clinicaly made allergen extracts are customized for your allergies

Your immune system gets desensitized to allergens, giving you long-term relief.

At-home Immunotherapy

Benefits of Curex

At-home treatment

Apply treatments in minutes from the comfort of your own home with under-the-tongue applications instead of shots or pills

5-30x higher cumulative dose vs allergy shots

Sublingual immunotherapy delivers a higher dose of allergens over the course of treatment.

Potential for results in as few as 6 months

Individual results vary but some users have reported a noticeable difference in as few as 6-12 months since starting treatments

Excellent safety profile

Studies that have been reviewed by certified physicians show that sublingual immunotherapy is a safe treatment option

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FALL SALE

Get started with the most affordable immunotherapy for only $49 $9.99
Discount applied at checkout.

Allergy Testing and Immunotherapy in Los Angeles, California

Start with a free quiz

Penicillins

Learn penicillin allergy symptoms, get expert diagnosis and treatments, plus prevention tips to manage and ease your allergic risks.

Start with a free quiz

#1 Online
Allergy Clinic

50,000+
users

Reviewed by Curex clinical team

Dr. Chet Tharpe, M.D..

Updated July 9, 2025

Where Penicillins Grows Across the USA?

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Carbohydrates

What Food Worsens Penicillins Allergy

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Sugar

Diet to Ease Penicillins Allergy Symptoms

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Fats

Tips for Avoiding Penicillins Allergy

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Proteins

How to Recognize if You're Allergic to Penicillins

Calories