Identify and avoid the trigger
Keep the area clean and dry
Use mild, fragrance-free soap
Apply a cool compress
Avoid scratching
Wear loose, breathable clothing
Use an over-the-counter anti-itch cream if appropriate
Use an over-the-counter antihistamine if the rash is allergy-related and suitable for you
Apply moisturizer if the skin is dry or irritated
Stop using new skincare, laundry, or cleaning products that may be causing it
Seek medical care if the rash is severe, spreading, painful, blistering, or not improving
Seek urgent care if you have trouble breathing, swelling of the face or throat, or a high fever