7 mo DS with dark circles

[SleepIsForTheWeak]

he sleeps well, but has these dark circle most of the time. They are a purpley colour. He also has mild excema, could it be related?

DS2 had very dark circles under his eyes, eczema, asthma and glue ear.
We found out later that he has a dairy and gluten allergy.
It might be worth getting your DS tested.

Thanks. He has been on dairy formula for ages, adn also eats yoghurt, so could it still be a possibility?

We didn't get it diagnosed until DS2 was 5 years old - despite asking to see an NHS dietician on two occasions, who categorically told us not to take him off dairy.
Best to start by asking your GP I think.