Dear Welcome to HCM We understand your concerns I went through your details. Penile lubrication liquid or popularly called as precum will be produced by your glands the movement you are sexually arised. This liquid is, as you know, aa lubricant and it helps in easy penetration and movement of your penis within vagina. The production of the lubricant is a natural process and you cannot control it. There are no medications to control the natural process. Secondly, the pain and discomfor is due to your excess masturbation., Please control your masturbation to manage your pain. You can do masturbation thrice or four times a week. For the time being, to help with the pain, abstain from masturbation for a week. Then gradually start. Concentrate of your education and career as a diversionary tactics. If you still need my assistance in this regard, please use this link. http://goo.gl/aYW2pR. Please remember to describe the whole problem with full detail. Hope this answers your query. Please feel free to post follow up queries. Available for further clarifications. Good luck. Take care.