Aug 15, 2018 - 06:06 AM
If you can't see or find any insects, chances are its something else. Could be soap or laundry detergent issues, food allergies, environmental allergies / issues, skin disorders.
I know that this is not helpful, but again, unless you actually find a pest, I can only guess. My best guess is either bed bugs, scabies, spiders, mites........ especially if you see bites / welts etc. These all require different treatments, there is no 1 cure all for everything.