especially if it doesn't go away or is accompanied by other symptoms. What are the four types of rash? There are several types of rashes, many of which are caused by an allergic reaction ...
Most people will deal with some kind of skin rash or irritation at some point ... hives can be a sign of a life-threatening allergic reaction known as anaphylaxis. Seek immediate medical care ...
People vary in their reactions to these substances ... avoiding the allergen or irritant causing your symptoms. More severe cases, or if your rash develops an infection, may require a doctor ...