Soak in some hot water, lots of water, eat plenty of fiber to keep your stool soft. Get one of those doughnut cushions to sit on while you're in the dozer of anytime for that matter. Ask your dr for some of those suppositories that are prescription strength, they are shaped like a golf ball tee but larger around.
I know too much info but since you brought it up and to inform Skinny, so he knows, lol! years ago, I had an anal fisher (hairline crack). Dr. treated it just like hemorrhoids.
Back then I was still a Deputy, it got to hurting bad one night while on patrol. I went to the jail and picked up a correctional officer to drive me around to answer my calls. I sat over in the passenger seat leaned over on one cheek, till I got that cushion.