Dry skin on the genitalia can be due to contact dermatitis,allergies, eczema or psoriasis.Contact dermatitis can be due to reaction of the skin to soaps,detergents,underwear clothes etc. is a form of chronic dermatitis (rash).Allergic reaction is one of the important causes of eczema. Allergic reaction can occur to strong soaps, Solvents, chemicals, certain foods, food additives, plants, metals, cosmetics, even urine and faeces of some animals (dust mites).
Treatment includes avoidance of the allergen, oral antihistaminics and topical application of corticosteroids.He may also try application of calamine on the affected site. It may work by soothing the skin.
Pls seek an appointment with a dermatologist for his complete examination as without examination making a diagnosis is tough.
Hope it helps.Take care and pls do keep me posted on how your son is doing.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.