Baby With Pimple Like Rash. Apply petroleum jelly or zinc oxide cream to shield sensitive skin from urine and stool. The rash may look like insect bites and later form pimplelike liquid-filled blisters that break open and crust.

If theyre between 4 and 15 months old chances are that she might have a diaper rash. In can also appear on the trunk face hands and feet. Heat rash looks like small red or pink pimples.
A raised itchy red rash can appear as an allergic reaction to things like stings medicines or food.
Diaper rash is a red rash sometimes with bumps that can develop on your babys diaper area. Diaper rash is an irritation of the skin caused by dampness urine or feces. Heat rash contact dermatitis eczema and keratosis pilaris and more can all cause pimple-like bumps and they are also common in babies and young children. Most bumps and blotches on a newborn baby are harmless and clear up by themselves.