Please don't use non-reptile treatment on reptiles! A friend of mine did that and ended up with a ball python with neurological trouble. Most Petcos now carry Reptile Relief or you can buy Pro-Vent-A-Mite online. Both are good products and should do the job for you. Also, it would be a good idea, if you're not already, to put him on a paper substrate to make it easier to spot mites in the cage.