Dear scorpionstar.786. you have not mentioned your age . weight body frame type, OK first of all you may have not measured it properly even if it is 3 inches you are having sufficient size to have satisfactory sexual life and can satisfy to any girl with this size. but i will suggest get examined measured your penile size by a sexologist, then make a opinion about size. 2nd till date no medicine , and technique is found to improve penile size unless you have low hormonal
levels. better consult a sexologist
he will guide you and if possible will advice you suitable suggestion.