What to look out for
Many things can cause a rash. If the rash developed in the past two weeks, it was probably caused by an allergic reaction or an infection.
Rashes which last for more than two weeks include eczema, psoriasis, discoid eczema, contact dermatitis, phytophoto dermatitis, acne and rosascea. Click on the links to learn more about these conditions.
What can you do
You may also need to see a dermatologist (a consultant doctor who specialises in skin conditions). The dermatologist can organise patch testing or skin or blood allergy tests to see if you are allergic to something. It is best to have allergy testing done by a medical professional.
Do not use creams, especially steroid creams, on a rash unless your doctor advises this as steroids often make rashes worse.
When to seek help
You need to see your doctor to get your rash diagnosed properly.