Here's a mystery for you to solve...
My husband, my daughter and I are all covered in itchy lumps. My daughter's are on her scalp only and she's itched them until they bleed. In the case of my husband and I they are spread all over our body - places you wouldn't expect insect bites to be (we like in Scotland and are always well clothed due to the chilly weather all year round). Weirdly, our baby doesn't have any of these itchy lumps. We have a cat.
Anyone any suggestions what's causing this?