Hi, Thanks for writing in to us. Your boyfriend masturbating three times each day and having a shower each time might be a bit more considering if his daily activities are being affected. The cause of itchiness might result from a fungal infection in his penis because of not wiping the genital area completely dry. He needs to get checked up clinically for symptoms of fungal genital infection and treated. It may also be that he is causing repeated low grade physical trauma due to excessive masturbation. I suggest he masturbates once daily for a while and gets a clinical examination done. Also he must wipe dry his genital area each time he takes showers and also wear cotton inner clothes. Hope this helps