Bro, you may want to consider seeing a manhood therapist to get the problem corrected. As this only involve massaging of the body/manhood areas the side effect and risk are low.
1. If you don't mind male therapist you can try to do a search at Yahoo for manhood therapy. There is one JAVANESE MASSAGE at Bukit Timah giving this therapy.
2. A female therapist called Nora
http://forum.sammyboy.com/showthread...highlight=nora
3. or another female therapist called Rita.
http://forum.sammyboy.com/showthread.php?t=49264.
Hope that this is helpful and get well soon.