On my lower thighs i have two identical "7" shaped rashes that are in the same space and shape. they're very itchy, i have not spilt anything on them ?

Doctor can examine: Rashes are hard to describe in words. Usually, a doctor has to look at a rash to see what it might be. For common rashes such as eczema, mild reactions to plants or chemicals, excessive dryness, or little itchy bumps, over-the-counter hydrocortisone 1% cream usually helps. A rash of itchy bumps can be of an allergic cause, but there are also non-allergic causes of itchy rashes.