your asking very vague questions
hash oil and ear wax are forms of hash, the trichomes and resin glands of cannabis in different forms.
Hash is kind of a trippy high, very strong and sedative. The appeal of hash is the ability to get incredibly stoned off of a very little amount of material. It's nice, but I'd rather have weed if I had to pick one.
You cant really say a small dab = x amount of weed, as the quality of hash and weed can differ. You CAN say that smoking hash (by weight) will get you a LOT higher than smoking regular bud.
You need to do research though
Look up how to make hash oil, and regular hash. You will see how it's created and better understand it.
Also look up thrichomes and resin glands. They are the part of the plant with the most THC/ cannabinoids. They are the little crystals or tiny mushroom like glob that covers the cannabis plant. They get you high, and people have methods to extract JUST the trichome to create hash. Different methods = different types (ISO, BHO, WAX)
BUDDER is cannabutter.
THC/cannabinoids BIND to fat... THC doesnt bind to water. To make budder you usually just float the butter in water, add your weed/whatever, and bring cook it at a low temperature so the cannabinoids come out and get absorbed into the butter. Then when you eat the butter and your body metabolizes it you get high. The difference between ingestion and smoking is that smoking is an immediate and somewhat short high. With edibles, its a very slow FULL body high(takes about 1.5 to 2.5 hours to peak) but it's very long lasting (about 5 or 6 hours).
Personally I love edibles, they're great. I'm at the point where it's a chore to keep myself high all day, as I have somewhat of a tolerance. So I love to eat something, and just be high for 6 hours
btw the only reason i wrote out that long response rather than telling you to google was b/c your a med patient
pm me if you still got questions bro