Is it true that PRP won't help with Telogen Effluvium?

PRP and steroid injections help TE along with spironolactone, peptide therapies as well. I suggest a consult with a hair loss expert.
I suggest a formal consultation as there are a combination of treatments that can be done to improve har loss.  Oral finesteride has very little to no side effects in the majority of people; PRP/platelet-rich plasma + stem cells like A Cell help regrow hair and slow down the thinning process; rogaine and restorsea spray should be used daily; oral viviscal helps keep nutrients high in the follices as well.  Transplantation is a last resort but works early in the aging process as well.  A formal consultation and combination treatment is needed.  Best, Dr. Emer.

Although PRP is most commonly used to hormonal hair loss, there is indeed some evidence to support its use in chronic telogen effluvium. I also recommend using low level light therapy (LLLT) which uses red light to stimulate the hair follicles. The one I recommend is made by a company called Revian. Best of luck!  

Telogen Effluvium is a self limiting process that will eventually resolve on its own. Tackle the cause of it, often stress of illness