Me and my wife were experiencing very similiar situation as yours and we have eliminated our problem but not easy vigorous cleaning bathroom clothing daily heavy bleach dont get out much. Two baths daily if not 1 for sure apply diacetomous earth as a paste on whole body every other day ingest 2 tsp a day and hot baths with epsom salts problem solved . Providing you stay regiment on cleaning and bathing we slipped up once for two days and itching and biting started but no more have to stay on top of it and it realy works oh ya pineapple juice coconut water and raw garlic good luck god bless