An allergic rash is skin inflammation resulting from contact with an allergen. It’s the skin’s natural defensive response. There is no single cause of an allergic rash in all people. The medical term for this kind of rash is allergic dermatitis.

The symptoms include dry, scaling, and very itchy skin where contact with the allergen occurred. Many people get rashes on their necks and wrists because of jewelry or on their faces because of cosmetics. Colognes, some fabrics, shampoos, animals, and fragrances from laundry detergent can all cause skin reactions, too, though not in every person. Everyone is different.

The first step to treating an allergic rash is to remove the item that caused it. Once a person knows what triggers a rash, he or she can eliminate that stimulus permanently and prevent future reactions. A person may need to void certain metals, detergents and household chemicals, personal care products, and pets.

A topical cream or an oral steroid can be used to treat allergic dermatitis. A dermatologist can determine what treatment option is appropriate.  Typically, an oral steroid will be used if a topical medication has not been effective.

Rashes that are caused by allergies are typically not dangerous. Unexplained bumps, scaling, or bleeding should be looked at by a dermatologist because they could indicate a more serious skin condition. If the irritation is persistent or keeps coming back, a dermatologist should be consulted to eliminate the possibility of other skin conditions.

A skin rash can also be caused by psoriasis, eczema, bacterial and fungal infections, and poison oak, ivy or sumac. Depending on the kind of rash, the treatment options are different. If it is caused by contact with irritants, a person can determine what is causing the reaction and avoid it. If a viral, fungal, or bacterial infection is causing the rash, a topical cream or oral medication may resolve it. In the case of chronic skin conditions like psoriasis and eczema, an ongoing treatment plan is the only way to keep symptoms under control.