Signs and symptoms of a male yeast infection include a reddish rash, itching or burning at the tip of the penis. Fortunately, most male yeast infections are easily treated with an over-the-counter antifungal treatment, such as Monistat (yes, men can use it too). Apply the medication directly to the affected skin twice daily for a week. If the rash doesn't go away, or if it recurs frequently, consult your doctor.
Good luck!