Hello,
This dryness can be due to dermatitis or friction rub, dry skin or eczema skin. Do not use any cosmetic products at the sites. You can apply some calamine lotion at the rash as it will help in soothing the skin. You can take some OTC oral antihistamine medications like Benadryl or Claritin and see if it helps.
For mild-moderate symptoms a weak steroid may be used whilst more severe cases require a higher-potency steroid).But they are available under prescription and should be taken only after consulting a dermatologist. Also it is not advisable to use potent steroids on the penis because the skin is thin and delicate. Symptoms can be exacerbated by dryness of the skin. Use good quality moisturizers to prevent moisture loss from the skin.
There are certain other non-pharmacological measures which are equally important in treatment. These are Lubricating the skin frequently, avoiding harsh soaps and cleansers, preventing scratching or rubbing whenever possible, protecting skin from excessive moisture, irritants, and rough clothing, maintaining a cool, stable temperature and consistent humidity levels, limiting exposure to dust, cigarette smoke, pollens, and animal dander & Recognizing and limiting emotional stress.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
i have the same thing, keep me poasted please. i switch to %100 cotton briefs and started useing mild lotions, and drinking alot of water. also i started taking vitamine e. seems to be helping a little