Generally, it is normal for an infant to cough up to 10 times a day, but if the cough exceeds 10 times a day, most of them should be considered abnormal, but to determine whether the cough is normal or not, a comprehensive assessment should be made in conjunction with the systemic symptoms. If the cough is only mild, the state of mind is good, the baby is eating very well, and there is no crying or restlessness, the cough is mostly normal. If you inhale cold air or fumes, you will also have a reflex cough, which is physiological and not a pathological cause. The next thing to look for is the absence of symptoms of respiratory tract infection. If there is no phlegm in the throat as well as a very red tongue and the lungs are normal on auscultation, this is also normal.