I have alopecia, it started at the back like this when I was 13. I have tried steroid injections multiple times through dermatology with some success, but never lasting success and it can be quite painful, as pp said, I find one patch clears as another starts. At any one time I can have 25-75% hair loss, but fortunately with long hair I can style it in a way that mostly conceals it/use hair pieces.
About 10 years ago I considered shaving it all off so I could stop dealing with it but my friends and family talked me out of it, however for a male this might be the least worst thing (sorry - hope that makes sense).
I have found the most helpful thing is focusing on my health, eating well, and working on my internal stress, I’ve worked out I can’t stop outside stressors from popping up but I can control my response, I tend to be naturally highly strung so working on that really helps. I know stress doesn’t cause alopecia but in my case it can really worsen it.
Hormones are the other major thing that make a difference for me, so ensuring hormone balance can be important too.
I find acupuncture helps a bit.
My alopecia is probably the worst it’s been in a long time because I have had a baby, am breastfeeding, and relying on sugar way too much!
It’s an emotional journey that took me a while to come to terms with but I’ve had it for almost 20 years now and I feel I know my triggers and what I can’t control and have accepted this as my normal.
I hope you manage to find some solutions soon.