My 6yr old granddaughter has had bug bite outbreaks several times over the last 3 wks. She wakes up in the morning with bites on back, arms, chest , neck that itch intensely. Neither of her 2 sisters get them. The doctor says probably bed bug bites - there is no evidence of that as we have scrutinized her bedding, Both sisters often share her bed without issue. We do not have pets. All sleeping linens are scrubbed each week, W are stymied.