Welcome to healthcare magic!
It can be a simple boil or an ischeorectal abscess
You should stop the hot compresses it can spread the pus to blood and can lead to catastrophe of septic shock
You need systemic antibiotics like Augmentin
and local dressings in guidance of your surgeon.
If the problem does not subside in 5days then it is not a boil but an isceorectal abcess and would need a drainage
under local anesthesia
I hope this advise would be helpful for you.
Still if you have any queries or doubts, please write me back,
I would be happy to solve them.
Wish you a great health!