My son and I have had lice, and I have done treatments, and sprays for all clothing, bedding, furniture, ect..as well as the head treatment shampoo, gel and comb. I have also purchased the special lice detector, that is suppose to hum, untill one is detected and then, zaps them! Still though it s been three days, and my head feels itchy still, and i keep checking and using the zap dectector . Is there something else i should be doing, using, or looking for that i mighta missed?