my acne and scars make me do stupid things

I was riding my bike today and I saw an old friend, I am sure she noticed that I had seen her and I am sure she recognized me, but I didn't stop beacuse I was ashamed of my cystic breakout and scars. I feel soooo bad right now. I don't like myself too much...

how long do your cyst take to heal, typically?

I have a cyst/lump under my lips. about 6 mm on the outside, red and painful, huge under the skin. I've had it for three days. I take ibuprofen twice a day; topically: bp, and an ointment with vaseline, and 3 antibiotics in it (neomycin, bacitracin, polymyxin b). I've also tried icing the monster (not long, like 10 min), but it became more red after that. It doesn't change. I'm so scared will take forever to heal, cause it feels so big under the skin. I don't want a cortisone shot, because I have a tendency to scar.
So I was thinking, how long do you typically have your cysts?