NEVER use insecticides meant for large mammals on snakes.
Just drop by Youtube and you’ll see tons of snakes suffering from poisoning even from mite-treatment products that are meant for snakes.
The only active substance safe for snakes is Permathrine, and only at a dose of 0.5%(the same dose can be found in provent a mite)- other substances can induce anything from poisoning to fertility issues. It takes quite an impact to cause an immediate and visible damage in snakes- the fact that the snake seems fine isn’t enough of an assurance.
Personally, I use Dectomax- it’s a vet prescribed medicine against internal parasites(Used for Park worms). When diluted with water (2 CC for 1 gallon of water), it can be sprayed on the snake and in the vivarium with absolutely no ill effect to the snake- afterall, it is synthesized to be safe enough for ingestion, and at larger volumes.
It may take 2-3 sprays, but it gets the job done and it’s very safe- no risks of poisoning.
If you have just one snake and no access to Dectomax, I’d:
• Remove all items from the viv and clean them- dish washing(not wood)/put in boiled water .
• Clean the vivarium with bleach and let it dry
• Put the snake in a shoebox with water(not too deep) with a bit of iodine. Another option is olive oil- the point is to suffocate the mites.
• Place the snake in a different viv, with paper towels and a water dish for the next week and see if you find any more mites.
• Rinse & repeat if necessary.
In small collections, I think the hassle is worth the risk reduction.
In large collections… Dectomax is the best way to go… some people report it doesn’t work… I think that’s because they do not take note that it is light sensitive and the bottle needs to be stored in a dark place… it’s exposed to too much light and becomes ineffective over time…
For me, it does wonders.