Thanks for your question.
It’s difficult to give you an exact answer without seeing your symptoms in person, but I can give you some general information.
Skin changes on the genitals can be caused by many things. Common fungal infections can cause skin breakdown (aka skin tear) and white build-up around the head of penis. Fungal infections are treated with anti-fungal creams like Canestan.
Sexually transmitted ifnections can also cause skin changes. Syphilis can cause swelling and sores on the penis, and mollusucm contagiosum can cause itchy, white bumps.
I would recommend going to see a healthcare professional in person. You can go to your family doctor, a walk-in clinic, or an STI clinic. Check out our Clinic Fidner tool for an STI clinic near you. Whether it’s a fungal infection or an STI they can help you get the right treatment.
Please leave a comment to let us know if this answers your question, or if you need more information.