Hello I m 25yrs of age an have been masturbating from many years, off late I don feel my penis erected even after watching porn or when my girl fren talks dirty, it was never like this before, an thrice I took viagra 50 mg to satisfy my gal cos I didn’t wan to CUM early, m worried,before I should to ejaculate within 3 mins once my penis was in her vagina. I want to last for long and get my penis erected like before with bigger size n thickness if it is possible. Does kohinoor gold help cure all this? If yes how long does it take? And how long m I supposed to take the course for? M located I’m bangalore,.india. Plz answer asap.