8Teething
Most babies typically start teething when they reach four to seven months old. All 20 baby teeth will fully develop before they are three years old. This process would lead to an excessive amount of drool dripping down the back of the throat. As a result, your babies might cough. There are also other signs, such as swollen or sore gums, turning down foods, rubbing gums, biting or chewing things, fussiness, and drooling. If there is no sign above, that would be the result of an allergy or cold rather than teething. [8]
