Ay, mama, I understand your worry, pero please, kung ang rashes ay spread na or ang baby ay may fever, mainit, o uncomfortable, better go to the emergency room na ngayon, okay? Hindi dapat maghintay kung may signs na yan. For now, try to keep the area clean and dry lang, avoid scratching, at wear loose clothes kung possible. A few of us mums noticed na sometimes heat rash or mild irritation lang siya, but you really need the doctor to see it in person bukas, or sooner if it gets worse. Alam mo yan, better safe than sorry with our little ones. Praying it's nothing serious, mama!