[toastau]

We don't have cures for diabetes, HIV/AIDS, allergies, plenty of ailments. Having treatments is totally valid even if they are taken forever.

People with the guidance of their doctor stop taking antidepressants all the time. External factors aren't static and often these can change. (separately or because of the treatment) You do not need to stop treatment unless you and your doctor have decided it is going to be better for you.

Another point I'd make is that we don't have exact mechanisms for action in other treatments like paracetamol. That doesn't make it invalid treatment.

[catlikesshrimp]

What is your doubt about paracetamol? This drug's pharmacology is rather well understood.

About the analgesic activity https://pubmed.ncbi.nlm.nih.gov/31734950/

About the antipyretic activity https://pubmed.ncbi.nlm.nih.gov/29738273/