
to you Rechyl. I can relate; I've had cysts like that before and they can be very painful

I can't say that I've had any as deep as yours and I know that you would like some relief NOW, but give those antibiotics a few days to kick in. This summer I struggled with a severe outbreak of my adult acne. It hadn't been that bad in a very, very long time. My doctor prescribed an antibiotic and it took almost a week before I could see a noticeable difference. Same might be for you especially since your cyst is deep.
As far as treatment goes, one thing I found that me helped tremendously was warm/hot compresses. I use a clean washcloth and run really warm water over it, then apply it directly on the cyst. More often than not it would bring it to a head. Not immediately but pretty quickly (a few hours to a day) I could see a whitehead forming. Okay, this piece of advice I probably wouldn't take but I would then proceed to pop or squeeze (everyone says not to but I'm an admitted picker and popper of zits

!) it and clean it thoroughly with peroxide.
I do hope you get some relief soon and that you'll notice a difference in the size of the cyst and decrease in pain.
Good luck!