According to Barton D. Schmitt, author of "The Health of Your Child," almost all babies develop rashes when they develop diarrhea. The more times a baby dries a diaper, the more likely he is to have a painful diaper rash, sometimes accompanied by blisters. If your baby has diarrhea, blisters are more common because his skin is more exposed to feces. If blisters appear in your diaper area, call your baby doctor immediately. Often, a blistering rash will heal on its own, but some treatments can help alleviate your baby's discomfort and help speed up the healing process.

Almost all children develop occasional diarrhea, but it usually clears itself, rarely serious . Diarrhea is the result of an intestinal infection in a baby and is caused by a virus, bacteria or parasite. Most cases of diarrhoea are highly contagious and spread through contact with the infected person, the dirty hand or the stool of the infected person. If your baby wears a diaper, frequent diarrhea can cause pain in the diaper, sometimes with blisters.
Foaming rash
If your baby is left in a dirty diaper, diaper rash often occurs for too long. It develops because your baby's skin is stimulated by fecal matter. Diarrhea can make the diaper rash worse. One symptom of a diaper rash is a blisters, which can be small or large. A bubbling rash may be an effect on your baby's abdomen skin, especially if she has frequent episodes or if the diarrhea is more than a few minutes after defecation.
Treatment
The best treatment for diaper rash is to keep the area clean and dry. If your baby has diarrhea, change the diaper immediately after defecation. Zinc-based diaper rash cream may protect your baby's blisters by keeping your skin hydrated. Petroleum-based diaper rash cream may also help. Your baby's pediatrician may also recommend antifungal creams, antibiotic creams or mild steroid creams depending on the type of blister or rash. Spray water on the blisters with a spray bottle and air dry. This may alleviate your baby's troubles and will help keep the area clean. useA cool cloth soaked in water may also give your baby some relief.
Precautions