I used DMSO gel, I would put a tablespoon of gel on the skin and then put 2-4 pellets finely crushed on top. I would then rub it in very well. I like to put it on the inside of ankles, wrap it with saran wrap and then off to bed. Make sure your skin and hands are very clean, also wash your hands very well after rubbing it in.
I am planning on purchasing a conversion kit from animal to change it into an injectable.
Hope this helps!
Good Luck