I used moxi twice. You dose once by weight. It made me very tired and slept for like 24 hrs straight. It did stop all the stuff from crawling in my skin. It is very powerful. If you need a second dose you take take it in a month. This stays in your system for a long time. Its worth trying based on where the worms are. A lot of mine were in my scalp. That and my face and lower legs is where i felt the most crawling. Mine were small not big enough to see on the outside. If your brave enough you can inject it into the area. Or you can use DMSO then the moxi and this will carry into the tissues better.