Although you still may catch the herpes virus even though you use protection, the
dry patchy
skin that you noticed on yourself may not be
herpes, but a localised
dry patch of
skin, may be an allergy to soap or dermatitis. Rub some moisture cream that is also antiseptic or an antibacterial cream like germolene, sudocrem, doublebase, your pharmacist may have a suitable cream.
Herpes normally comes out like blisters and sores that run along the nerve route.