I doubt that it is lichen simplex (
eczemaEczema
Eczema, atopic - close-up
Seborrheic dermatitis), because that would produce thickened scaling and thus would not be smooth. I suspect mild chafing, which might be best treated with no active
medicationsAllergic reactions to medication
Drug allergies
Drug-induced hypertension
Getting a prescription filled
Home pharmacy
Inhaler medication administration at all, just powder. The brown
colorColor blindness
Color blindness tests
Color vision test may be secondary to mild irritation, in which case it is best ignored and left to fade on its own. (Are you quite sure the "brown
colorColor blindness
Color blindness tests
Color vision test" is new and different--is it possible you never looked carefully before?)
As usual, I am compelled to refer you to a
skinActinic keratosis
Aging changes in skin
Allergy skin prick or scratch test
Allergy testing
Basal cell carcinoma
Birthmarks - red
Cellulitis
Circumcision
Cutaneous skin tags
Dry skin
Fair skin cancer risks specialist who can evaluate you in person and offer treatment, if any is needed.
Best.
Dr. Rockoff
Mark.