Could PRP treatment heal problematic scars after labiaplasty?

PRP can be helpful for Labiaplasty or other scars. We often combine this with steroids , 5 FU. , cryotherapy and Fractionated lasers.
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Jeff Rapaport MD FAAD
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In my experience, PRP and PRF have the potential to make a significant difference in changing the APPEARANCE of scars, even those which are a result of suboptimal healing. However, it sounds like you are having issues with scar tissue that are not entirely from its appearance. The itching and pain may or may not improve with PRP treatment, depending on what is the root cause of the issue.
Also, what do you mean when you say "It also tightens them."? Clarification on what exactly you mean here could make it easier to provide an explanation.
Lastly, it's difficult to make a determination purely based on your description. Most "labiaplasty procedures" refer to the removal of unwanted tissue of the labia minora. If your surgery included anything else, it would affect my recommendations.
Also, what were the results of the infection? Did you undergo repeat surgery or other procedure for an abscess, etc.? Was the infection local or did it spread? What tissue was infected? These are just a few questions that need to be answered before a thoughtful response can be provided.
The pain and/or itchiness may represent a different medical issue that needs to be addressed entirely. I would suggest first scheduling an appointment with another physician who is intimately familiar with labiaplasty procedures.