Yes so basically bias it into what you think it should reply in the question and it will magically somehow give the reply you wanted! Very useful :D

If the LLM is trained on accurate medical data and you provide accurate symptoms data, then the LLM can be a useful tool to output the information in a human-readable way.

This is not a diagnosis. Any reasonably capable person can read webmd and apply the symptoms listed and compare them to what the patient describes. This is widely regarded as dangerous because the input data as well as the patient data are limited in ways that can be medically relevant.

So even if you can use it as a good substitute for browsing webmd, it’s still not a substitute for seeing a medical professional. And for the foreseeable future it will not be.

compared to what? most doctors never heard of Bayes rule