My family has recently gotten the scabies mite... WE have cleaned our house top to bott om with hot soapy water, Rid, Used a cleaner on carpet/couch. we treated ourselfs with Permethern cream, Eurax, and i have used tea tree oils, poroxide, etc. Everyone but me and a older son has kicked it. I have went as far as sanding my skin....My question is what do I do to rid it once and for all SAFETLY! I was told Borax in a tub ....is that safe? HELP