 [ Symptoms ] i have a light red sometimes purpleish rash on the shaft of my penis i have tried using cortizone and a lamisil atf i have had the rash for about a month it does not itch or burn there is no discharge or anything like that it is just there and it is driving me nuts when i first noticed it i frequently masturbated at least once a day of not more since i have slowed down to nearly at all but the rash will not go away regardless of what i try please help [ Disease ] there are actually two kinds of side effects from radiation therapy    early and late early side effects such as nausea or fatigue are usually temporary they develop during or right after treatment and last for several weeks after treatment ends but then improve late side effects such as lung or heart problems may take years to develop and are often permanent when they do the most common early side effects from radiation therapy are fatigue and skin problems other early side effects such as hair loss and nausea are typically specific to the site being treated