Hey babe, that’s just prickly heat rash. It should go away on its own. My baby had it too. Just wash the area every morning with warm water and make sure it pat it completely dry. Keep baby’s skin cool and dry as much as you can. 👍🏻
I mixed breastmilk with bath water and left him in for 10mins last night. This morning, everything around his neck dried up. It works like magic.
I use mustela baby micellar water and tubby Todd cream and it went away sooo fast
My son has the same. Was told it was acne/eczema. They advised me to change his bath routine. It has helped so much.