Suggest Treatment For The Complete Removal Ofcyst

i have a question about a cyst that I got removed. The problem is that I thought it was a mole and went to a cosmetician and since she specializes in removing moles she has made an appt and attempted to remove my mole via electrocautery. When she started I still felt the pain even though she numbed it then she said "oh my this isn't a mole it's a cyst, there's puss coming out" so she literally squeezed it out and now I've got a pretty deep hole on my chin which is oozing some clear liquid and I think there's still something inside of it, like a part of the cyst.. I don't know what to do about that. I really don't want a scar, moreover, I don't want the cyst to come back under this scar.. I read online that if the cyst is not fully removed, it will come back... Can you please tell me what I should do?