Boil that won't go away

Ugh I'm so depressed about this stupid boil on my butt cheek that won't go away. I swear I have tried EVERYTHING. The doctor gave me antibiotics, I cover it with a bandaid everyday, put polysporin on it, have a hot bath every night. It gets almost gone than bam shows right back up! I'm so done with this thing. Doctors say they can't do anything and I have to just keep it clean and what not but I do! Anyone else ever expirience this?!? What can I do?? Oh Ya, so I got this thing first 3 years ago, had it for a year, it went away for a year and now I've had it again for the last fricken year. Please help I don't know what else to do 😭😭😭