Hives or skin rash
Persons allergic to chocolate may notice hives, redness, or skin rashes on the body. This happens as an immediate reaction of the body's immune system to allergens present in chocolate.
Difficulty breathing
In some cases, chocolate consumption can lead to difficulty breathing. This can vary from shortness of breath to a severe reaction like anaphylaxis which requires immediate medical attention.
Stomach upset
One of the most common symptoms of a chocolate allergy is a stomach upset, which can include symptoms such as vomiting, diarrhea, or abdominal pain. These symptoms normally develop within a few hours of consumption.
Itching and Swelling of Lips, Mouth or Throat
Another common reaction is itching and swelling around the mouth, lips, or throat. This usually happens almost immediately after eating or even just tasting chocolate.
Migraines
People with a food allergy to chocolate might experience migraines or severe headaches. These may not occur immediately, but rather a few hours after consuming chocolate and can last for longer periods.
Nasal congestion
Individuals with a chocolate allergy may experience nasal congestion or runny nose. This symptom can occur together with other symptoms of an allergic reaction such as difficulty in breathing.