What you’re describing wouldn’t be ethical even if everyone participated voluntarily, experiments on humans have to clear high hurdles.

  I notice acne.
  I have a choice of going to a regular doc, or this ai clinic.
  I decide to go to ai clinic (and take the risk of prescription that may be incorrect).
  I get the prescription. Probably double check it with Gemini or chatgpt.
  I get the medicine and use it.

Yes, and there's no shortage of historical examples showing why we need those hurdles to be so high.