I'm 48, 170lbs Caucasian. I'm a type 2 Diabetic using diet and vitamin/supplements to control. No Prescriptions. I have mild ED. I believe I have caused the condition due to using a Pump at well over the 10hg recommended. The staining has been with me for over 6 months and is only slightly lighter then when it showed up. Is there a topical that I can use to remove or treat the staining with?