Jan 15, 2018 - 07:14 AM
Viper is a very strong insecticide that is best used outdoors. I normally don't even recommend to use it indoors, although the label permits it to be used on baseboards and in cracks and crevices only. Cypermethrin the active ingredient has a high degree of skin irritation. If you spray the mattress and somehow get it on your skin, it will feel like a sunburn and could cause an allergic reaction. Hope this helps.