Teething and diaper rash often coincide, giving babies two reasons to feel miserable. There is however, some dispute over the connection between the two, such as whether teething can cause a bout of diaper rash or whether the link is coincidental. A number of theories attempt to explain why teething and diaper rash are frequently observed at the same time.

Parents report a range of symptoms associated with teething, usually just before or while the baby is cutting teeth. Teething and diaper rash might be observed along with a low grade fever or diarrhea. Severe diarrhea or high fevers are not associated with teething, and a trip to the doctor might be required.

Babies usually begin teething at somewhere between 4 and 7 months of age, and they continue cutting teeth for the next two years. Irritability and constant chewing are good signs that a tooth is on the way. Heavy drooling is expected, and this drooling can cause skin irritation on the face, neck and chest.

Saliva might be responsible for diaper rash as well. Some people have speculated that swallowed saliva might loosen stools and cause bouts of diarrhea. Loose bowel movements can irritate the skin and cause diaper rash.

Urine also might be responsible for the link between teething and diaper rash. During teething, urine can become stronger and more alkaline, increasing irritation. Whether stools or urine is suspected, frequent changing will help to relieve diaper rash.

Some people are not convinced that there is any link between teething and diaper rash, and they suggest that these conditions might not be related. For instance, babies of teething age are also being introduced to new foods. This change in diet — rather than teething — could be responsible for any observed diaper rash.

Regardless of the possible causes, recommended treatments and responses for teething and diaper rash remain the same. Cool washcloths or teething rings can provide teething pain relief and help speed up the process. Teething gels can be useful too, and parents can consult with the family doctor or pediatrician for recommendations regarding the use of painkillers such as infant ibuprofen or acetaminophen.

The best defense against diaper rash is a clean, dry bottom. Time spent without a diaper will let air reach the skin and help dry up the rash. Frequent bathing will provide relief and distraction, and it will cleaning the baby's bottom. Over-the-counter creams and ointments can be very effective, but for best results, they should be applied to skin that is thoroughly dry.