TOPIC: Wavelengths therapy + PRP injection treatment

The search function doesn’t really take me to what I’m looking for.. Seems that some people have had PRP therapy (blood platelet injected into penile shaft) for size increase (??)

Whereas I’m interested in making erections firmer..

Are there any folks here who’ve had it done?
Good? Bad? Useless?

Also, I’ve never had a needle stuck into my shaft (while awake, had FFT several decades ago).

How painful is it?
Will I be able to fly back home a day or so later?

Thanks for the feedback..