Precum is completely normal and there is nothing you can do about it.

Precum will only contain a virus, if the person carries a virus , usually those that are carried in the bloodstream (ie: hiv).

Please I need help!

Also will it go away when I get older or no.. Or is there any way to help prevent it?

I'm here to help man, what do you need? There's nothing you can do about it! It just happens, although it does tend to occur less and less as you become older. Some people get precum all the time and a lot of it, while others get very little of it, if any ever..... Calm down, believe me, you're not the only one. Is there a reason you're so worried about it?

Its just I hate having it.. When ever I get erected it comes out.. Maybe alot.. Maybe a little but it sucks.. I wish there was a cure.. Or do you think that there is any herbs that helps control it? Becuase me and my girlfriend just cuddle and my front part of my pants are wet alot.

sorry man, it actually does that for a reason, not just because you're horny.