Does anyone have experience of this or tips for finding the source?
She doesn't have it anywhere else so could it be the washing powder detergent? We have switched back to powder from the pods the last two times we bought washing powder (UK) and at the moment it's Fairy Non-Bio for sensitive skin. We did only start using this in the last week. However I think the rash started before this? I can't be sure and she doesn't have it anywhere else.
The other thing is she got new vests last weekend. The first ones we tried had like a scalloped/ wavy neckline and I think that irritated her so we stopped using them. The other ones are normal 100 per cent cotton similar to what she has always worn.
Maybe sun cream as it's been sunny this week but I wouldn't put it down that far on her back.
I have been using Aquaphor for a few days and then Sudocream today but it's not improving a lot.
I think maybe 3 or 4 days now. She did have an itchy patch there for a while though. She is somewhat prone to dry skin.
I will take to her to pharmacy tomorrow if no improvement. Or maybe the GP?
Maybe a photo would help. But any advice is appreciated.