Female hair loss, am I a good candidate for PRP or cortisone shots? (photos)

PRP treatments are fast growing in popularity. While there is a good deal of anecdotal data on its positive effects, there is very little randomized controlled (i.e. high quality) data available. With respect to hair restoration, proponent have demonstrated impacts ranging from slowing/cessation of loss to thickening/strengthening of hair. Some will claim to have demonstrated regrowth.
Ultimately, there is very little drawback or risk to the procedure with the potential for significant reward. While the mechanism of action is not entirely clear, the effect will likely be rooted in the native concentration of growth factors in any given patient's plasma. Some will have better quality or more concentrated plasma than others. The results range from decreased hair loss to thickening of existing or emerging hairs to increased growth. Ultimately, the variability in response is likely linked to the inherent (i.e. genetic) quality of the plasma which will differ from one patient to the next.
PRP has (anecdotally) proven to be effective in the arena of hair restoration both as an adjunct to grafting as well as standalone treatment for those who may not (yet) be a candidate for grafting. Patients have demonstrated slowed loss, thickening of existing hair and regrowth. The typical duration of effect is 6-9 months with most patients being treated 2x yearly (at least initially).
In my experience, it is a nice option for young people who have yet to reach a stable hair pattern (i.e. not ready for FUE grafting/Neograft) and are looking for an adjunct to traditional medical therapy. That being said, it is important to limit your expectations as not everyone experiences regrowth at the same pace (or at all). However, anecdotally speaking, everyone seems to gain some benefit with regular treatments (annually to bi-annually after 3 treatment induction).
As always, discuss your concerns with a board certified plastic surgeon (ABPS), with experience in hair restoration.
Donovan Rosas MD
Board Certified by the American Board of Plastic Surgery
Member: American Society for Aesthetic Plastic Surgery, American Society of Plastic Surgeons
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This needs an in-person evaluation. I suggest seeing a hair loss expert now to evaluate and go over your condition and provide you information about your best treatment options. There are great non-invasive options like prp/progesterone and/or hair transplantation. See an expert. Best, Dr. Emer

While PRP may turn out to be a good option for you, it sounds like you have not fully investigated the cause of your hair loss.  You should first ask the dermatologist about lab work and potentially a biopsy based on the doctor's history and physical.