Musical Instruments And Accessories

The problem started about a month ago(also about a month ago we found a dead nutrea(large rodent in Louisiana) near our washing machine-it was removed). We started itching all over and then small pin sized red marks appeared all over our body-no insects or culprits visible. We went online about two weeks ago to look for a solution and possibly buy something. We found a company that said they could help and bought a fogger and chemical (total over $200). We then called our dermatologist that prescribed a medication (starts w/ a P) that you put on but must take off w/in 8 hrs (but its carcenogenic). Two to three days ago we went to a pest stop like company on severn and they gave us another chemical to use in the fogger. We have washed items at the washeteria but heard that we should have just done that at home. Each time we use a product we have the problem the next day or so. Please someone help or possibly if you know of someone who might have had the same problem but solved it.