I have a sebaceous cyst caused from an ingrown hair on my inner thigh, should i pop it with a sterile needle?

About a week or 2 ago I noticed a red bump on my inner thigh that looked like a pimple and thought it was an ingrown hair. Today it started to hurt really bad and within 2 hours it's almost the size of a ping pong ball now. I've tried squeezing it to get some of the fluid out but the size doesn't seem to be going down. It's too late to go see a doctor tonight and hurts SO bad. My boyfriend said to stick a sterile needle in it to drain the fluid. What should I do?