How can i overcome rashes from allergy?

Identify trigger: The best treatment for allergies including those that cause rashes it to identify the trigger. An allergist and most conventional dermatologists can assist in testing to identify that trigger. Other treatments can include various topical ointments or creams, but that will not solve the problem.

See a dermatologist: How do you know it is allergy? Most rashes are not allergies. You need to start with a precise diagnosis.