baby rashes. doctors don’t know what it is

[sfh5]

my baby is 10 weeks old now. She has had these rashes from when she was 8 weeks old. They started on the top of her forehead but were barely visible (initially i thought she had just scratched herself as it was just a tiny bit of redness). They then got bigger, redder and spread all over her scalp. They then spread on her face, legs, back. We took her to A&E where all the nurses and multiple doctors had no idea what it was. Her bloods came back normal. She has been acting completely normal too- feeding well, sleeping well, developing well, wet and dirty nappies etc. We had been referred to dermatology and they still don't know what it is.

Stressful as it's been over two weeks now and they are not getting better at all. We've had so many opinions from doctors, nurses, consultants, dermatologists and they all say that they don't know what it could be.

1. they are not painful or itchy, don’t cause any discomfort
2. started off as small red flat spots but get bigger and darker

Some have started to scab over

As your daughter gets older you will realise that children get a huge number of rashes (usually post viral) and all you can rely on for the doctors to rule out the cause being anything sinister. Otherwise in time they will fade away.

Best advice is to go on symptoms rather than rash size or presentation. An unwell baby will need treatment regardless of whether they have a rash or not whereas a well baby might have a huge rash.

At the risk of getting howled down have you asked chatgpt? 2x GP were stumped for months with dh's odd rash and chatgpt got a correct diagnosis straight away.

Has impetigo been considered? Surely it would if you have seen a dermatologist but that's my only guess. And it's more usual to see around nose and mouth.