Redness and Itching
One of the primary symptoms of a sunscreen allergy is skin redness and itching. The skin area where the sunscreen was applied becomes itchy, red, and inflamed which is primarily due to an allergic reaction.
Skin Rash
A skin rash or dermatitis could develop shortly after applying the sunscreen. The rash might be characterized by small, raised bumps, and it usually happens in the area where the sunscreen was applied.
Swelling
Some people might experience swelling in the areas where the sunscreen was used. This can range from a mild puffiness to larger, hard swellings that are very uncomfortable.
Blisters or Hives
In severe allergic reactions, one might develop blisters or hives. These may burn or itch intensely, and can lead to severe discomfort or even infection if not properly treated.
Pain
A not so common but possible symptom could be pain. The skin may feel tender to the touch and there might be a sensation of burning or stinging.
Dry, Cracked, or Peeling Skin
The allergic reaction to sunscreen can cause your skin to dry out and may lead to cracking or peeling. This is more likely to occur after repeated use of the offending product.