Hello! I have suffered with cystic acne for about 10+ years...ever since becoming peri-menopausal around 38, so at least 11 years. I'd rarely even have normal pimples until then. I did have a hysterectomy a year ago and hoped they would stop but nooooo 🙂 !! I am on a small dose of estrogen so that may be the culprit as my cysts always popped up around my menstrual cycle so that are hormone related in my case.
I have had the SAME ones come and go in different areas on my face now for over 3 years. (Chin, eyebrow and side of nose) . They suck! I try to go to the derm as my insurance does pay for a cortisone injection. Sometimes they hurt so bad that they cause nerve pain ( ones around my nose for example). I feel for you, trust me.
I'd still try your derm and tell them you'd like to get in as it's such a quick treatment I've never been made to wait more than a day. However, I have gone to my Med Spa ( where I get Botox) many times over the years just out of convenience for the injections. Most all Med Spas do cortisone injections. Choose one with a good reputation with licensed staff doing the injection if you are not familiar with one already. Ask friends that get fillers, Botox, etc for recommendations if need be. Some shady places will allow non-medically trained employees to do them. It's not rocket science but the most important factor IS that a Nurse is doing the injection if not the medical doctor them self that they practice under ( they are sometimes on location, sometimes not). Cost varies from place to place but $30-$50 is about average in my area (So Cal). It's money well spent if you ask me. This is truly the only thing that has ever helped to make the cysts even begin to go away. As I said, I do have a couple that are recurrent and the amount of injections into the same area has to be limited at some point as you can develop scar tissue believe it or not where the cyst was/is. I had a re-occurent one over my right eyebrow that seems to have finally stopped "erupting" but I do have a small raised area and hole where it was.I think it was injected about 4 times over a year and a half as it just would not go away. But I'd rather have that small bump and pick scar than a dime to nickel sized cyst that throbbed and was just hideous!
They also have some gentle lasers at the Med Spas which can be used to spot treat the cysts and can help with recovery and lessen scarring. In the mean time I'd continue with the warm compress, arnica gel or cream if you have any on hand (you can buy it at most any drugstore) for inflammation and even an oral anti-inflammatory like Advil or Alleve if you don't have any medical contraindications to using them. For the future, topical azaelic acid creams can be helpful in preventing/healing them along with a retinoid or retinol ( do your research and get some professional advice on how to incorporate them into your skin care routine). Finacea is a brand name drug which you may be familiar with that is azaelic acid based but can cost a small fortune. You can buy quality azaelic acid creams over the counter. It is an ingredient in many rosacea products and also helps with with the scarring and pigmentation. Good luck!