I had a friend who had his ears keep getting thick after practice. He was bothered by it so I told him I would pop them and push out the blood. I tried a small sewing awl but he kept pulling away and hollering like a little girl. I got an exacto knife and put a 1/4 inch cut in his ear and pushed all the dark blood out and got it thin again.
If we would have used some type of compression I think it would have stayed thin, but we didnt so it just filled back up and was thick again the next day.
I have seen doctors draining ears with needles after matches but I was not close enough to know the size of the needle. I think if you want to do it yourself the pharmacy would give you any size needle you want.