![]() ![]() In either case, you can stave off allergy-induced rashes by avoiding the allergens in question. If you have severe contact dermatitis, your doctor might recommend antihistamines, oral corticosteroids, and possibly antibiotics to prevent or treat skin infections. You’ll likely need to apply the cream once or twice daily for two to four weeks. You can get this in the form of an autoinjector device, like an EpiPen, per the Mayo Clinic.įor allergic contact dermatitis, topical corticosteroid creams, such as OTC or prescription-strength hydrocortisone, can help the rash heal. ![]() For more severe food allergies, you’ll need an emergency injection of epinephrine. These drugs, which are available over the counter or with a prescription, can ease your rash by reducing histamine levels. If your rash is triggered by a mild food allergy, oral medications called antihistamines can do the trick. The best treatment for an allergy-induced skin rash depends on the underlying reaction. How do you treat a skin rash caused by an allergic reaction? The same goes if you have multiple blisters that aren’t responding to home remedies like over-the-counter (OTC) 1% hydrocortisone cream, Dr. To prevent infection, you’ll want to visit a doctor if your rash is persistent, painful, or severe. According to the American Academy of Dermatology, signs of a skin infection include: If you think your rash is infected, be sure to get medical help. This can happen when constant scratching-or burst blisters-break the skin.
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