Hi Lesh
It is best to do things slowly so I would suggest that you drop 1 feed and then in 2 days time you drop another feed. keep dropping a feed every 2 days. So for example lets say that today you give 6 feeds tomorrow Sunday only give 5 feeds then Tues only give 4 feeds. And so on. This is only a guide and you may need to change to suit your personal circumstances. It is important that you do not rush this. If you do it could lead to engorgement or even mastitis.
Again and just to reinforce, your baby drinking some of your blood will not cause him any harm.
Cabbage leaves are a great idea. Put a cabbage in the fridge then when it is cold pull off some of the leaves and stuff them into your bra. You will need to change them a few times a day and you may also smell a little like a cabbage but they do work.
Yes there are tablets that you can get but there is no need to put extra chemicals in your body if you don’t need to.