Topical rash treatments are used to alleviate the discomfort and symptoms associated with various types of skin rashes, including redness, itching, swelling, and irritation. These treatments often contain ingredients such as hydrocortisone, antihistamines, or soothing agents like aloe vera and calamine to provide relief from allergic reactions, dermatitis, eczema, or insect bites. By applying these creams, ointments, or lotions directly to the affected area, individuals can experience quick relief and support skin healing.