question: Annoyances going on for 5 yrs now.  Have self treated as per lice infest, rat and dust mite..descript chronic. Have tried frequent rug shampooing, spraying, fumigation.  Laundering w added soap, hot tumble-dry...obsessive.  Good results w frequent, isolated, laundering.  Regular showering.  Frequent itching around waist @ beltline now.  All hospital tests show negative on skin rashes, eggs etc.  Symptoms of specific bite annoyance w no rashes or welts.  Extreme itching of palms and soles.  Problem 90prcnt controlled.  IMPRESSION?