Also, I hope that you are seeing a colon/rectal surgeon on monday. Pilonidal cysts are hard to treat, and many doctors do not even know what it is. I know this from years of going to doctors and mentioning pilonidal cyst excision in my medical history, and most of them ask me what it is.
If you truly have a pilonidal cyst, your doctor will recommend surgery. I have known one person who had the surgery and never had a problem again, but it is not uncommon for it to flare up again---it is in an area that is very hard to heal and keep clean. Also, when I was getting ready for my first surgery, my doctor acted like it was going to be a piece of cake to heal. I wish I had been better prepared. I was out of school for 2 weeks, and in an extreme amount of pain. I had to take narcotics for a solid month everyday and I was only 15 at the time. The cyst was the size of an orange at the time, according to the surgeon. My 2nd surgery was 3 years ago when I was 21, and the doc said it was about the size of a golf ball then, and my pain was being caused mainly by scar tissue at that point. So, if you do have surgery, be prepared to take time off of work. I was only out for a week the second time around.
I know this is a lot of info, but I hope it helps---I wish I had been able to find support from others who experienced this when I did!