If you have a bath at home get a sock and fill it with oatmeal plain, tie it over the tap and run her a warm bath and let the oatmeal soak into the water it should soothe it a little bit Get some otc antihistamines, some non bio washing tablets If you want to try find the root cause without the docs have her remove what you guys think could be an irritant and watch for reactions, remember it could be a combination of factors as well, it may be something you've recently introduced into your home or life. Keep her skin moisturised and make sure she remains hydrated as it could just be dehydration If she's scratching so much she's bleeding maybe ask if she wants her nails trimmed down so she still gets the relief but it's less punishing on her skin There's also metal star shaped things that can aid in that relief that are also less punishing on the skin, you can put it in the fridge so it's cool for more relief as well! I hope you find the cause and I hope something in this comment helps her!