sounds like you may be getting wood mites,annoying but generally considered harmless to reptiles.are they dark red or black? are they attaching themselfs to your snakes under the chin,around the eyes or around the vent?

reptile relief is for treating the snake itself not the enclosure,for the enclosure use provent-a-mite as mentioned earlier.read the directions CAREFULLY,it works wonders as directed.

i often read posts where someone gets mites then tries to figure out where to get P-A-M fast.that's like looking to buy a fire extinguser after the fire starts.every collection should have reptile relief and P-A-M sitting on the shelf just in case.hope this helps.