For months my family has been battling what some doctors have thought to be scabies. We have taken all necessary steps: repeatedly dousing ourselves in kwalada p ( wife 5 times, me 4th time today, our kids twice), we have immediately washed clothes in hot and dried clothes excessively on hot, have had our house treated 3 times. After all, I still felt a telltale pinch or prick on my leg a few hours ago. Upon examining, a tiny red spot was evident on the skin. When touched, a small scab, or dot at center fell off and it bled. We keep being "bitten"' even though we never see what is biting us. Please help.