I'm quite new to this so please be gentle.
I have a leak from the seal around the tap on my keg. What can I do?
The beer should be ready in the next couple of weeks but I fear by that time I will have lost a few pints.

Will it upset the beer if I try to remove the tap and re-seal it? Should I just wait it out and hope for the best?
I tried tightening the tap but that seems to have made it worse (I think I have just squashed the rubber washer). I think a fair amount of ptfe tape should sort the problem before I brew my next lot.
Any suggestions are welcome but please help. Seeing beer dripping away is breaking my heart.