The excess saliva can cause your baby to gag or cough occasionally. This helps her to relieve the pressure on her gums. The tender gum tissue is inflamed as a result of the teeth trying to push through to the surface. The first teeth and the molars are usually the most painful. This pain makes the baby irritable.
Some babies exhibit irritability for weeks, rather than for a few hours or days.
If she is nursing, she will crave the comfort of suckling at your breast, but once she begins to such she may reject the breast or bottle, as suction causes her discomfort. A baby who has started eating solids will lose interest in them. However, you need not worry as your baby is getting most of her nutrition from nursing or formula. Her interest in food will resume once the tooth has come out. Your baby may or may not have diarrhoea while teething.