smilem
Sunspark is right, these things need to be treated with great care. A lot of anti parastic / anti microbial drugs carry risks of things you might not notice till its too late like liver disease or immune system disorders.
I'm not against experimenting with antibiotics and the like, there are lots of infections that we might pick up over our lifetimes that our immune systems can never fully eradicate. There is some evidence that these infections can do harm, for instance there is some statistical evidence that the herpes virus might be responsible for some cases of alzheimers.
However
Be aware that a positive response to an antibiotic/antiparastic etc does not mean you have one of the infections that drug treats. A lot of these drugs have other effects that could make you feel better. Ivermetin apparently has anti-inflammatory effects which will make a lot of illness better. You might get the same positive effects, with a bit less risk, by trying out some conventional painkillers.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7476419/
https://pubmed.ncbi.nlm.nih.gov/37085956/