It could be a heat rash, best to ask GP or HV if you’re concerned x
I thought it might be a reaction to our dog back home, he has this before and it came out again last night! He’s acting all fine just this rash
How old is your LO?
@Jackie 16 months
Looks like heat rash, keep an eye on it, if it gets worse I'd seek medical help xx
Looks like heat rash/ acne x