We are getting into possible dangerous stuff, but even plain water can be dangerous if not used right.
If you have a medical or health problem that is what doctors, clinics and hospitals are there for.
I myself am not a medical doctor nor do I examine patients, don't diagnose nor prescribe nor treat patients.
If you need medical help consult with a medical doctor.
Self diagnose, medicating and treatment might be against the law where-ever you live at, I don't know.
Whatever you do or don't is on you, I don't want to know about it, you didn't see anything here nor heard anything from me, I don't know you nor want to.
All of these are for reference only, the resposibility for your actions is yours.
Look for indications, contra-indications and allergies for each of them.
If you are not sick don't medicate.
If you take anything take as as indicated in the right way(s) and dosages and time(s), Where and How? There is a lot of stuff on the Internet use search engines, books, magazines and in your doctor's mind and books.
These stuff might have the potential to harm or kill you, so beware.
If there are any allergies and or contraindications or if they are a poison or if you don't know how to take them and in which dosage(s) and or when and for how long then don't take them.
Before taking anything ask a doctor first, don't self medicate.
These are not all just a list of some of them (In no particular order):
Borax (Not Boric acid)
Grapefruit seed extract
CAPRYLIC ACID (Coconut Oil)
OLIVE LEAF EXTRACT (oleuropein)
apple cider vinegar (Malic acid)
red thyme oil
Biotin 8000 mcg
Grape Seed Extract
This is only part one, there might be a part two follow-up later.
Sources? You can try an Internet search engine, supermarket, health food store, pharmacy, vitamin store, Etc.