and foreskin got infected and it is having small crack which is paining when i masterbate and it is not curing at all ( it is there for nearly 3 months). is there any link between the crack and the white patch
Hello,
This crack can be due to dryness of skin and psoriasis and the masturbation is causing friction rub which is delaying its healing. For mild-moderate symptoms a weak steroid may be used (e.g. hydrocortisone as dermacort), whilst more severe cases require a higher-potency steroid (e.g. clobetasol propionate, fluocinonide).But they are available under prescription and should be taken only after consulting a dermatologist. Symptoms can be exacerbated by dryness of the skin. Use good quality moisturizers to prevent moisture loss from the skin.
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 doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.