How to treat molluscum contagiosum?

My son is now found to have infectious molluscum contagiosum last year, to go to the September clip a time, October clip a time, but each time still continue to grow, the most when there are more than four dozen, big and small have, but also played what interferon injection, but also does not matter. Then there is no way, the Internet, found on Taobao sell this medicine, no way out, just try it, the store called Yi family baby, there are internal medicine powder, boiled into a porridge to eat, there are external medicine, my son only ate once internal medicine, will not eat. But I have been insisting on giving him the external drops, from the end of October, I think, on and off until February, basically, it's fine. This is our real experience with good.