What should I do if a child cries when they encounter cold wind?

Patient's question:

I recently found that my 20-month-old child often cries, especially when there is a breeze, and sometimes this phenomenon also occurs at home. What is this disease?? First question supplement: No other symptoms. It's like this when encountering cold wind

Doctor's answer:

The reasons for a baby's one eye tearing include the following:
1. Excessive tear production that cannot flow into the nasal pharyngeal cavity in time, such as when a child is emotionally agitated or crying. This type of tearing is usually physiological and temporary.
2. Narrowing or obstruction of the tear ducts, which may be caused by inflammation or trauma, or may be congenital narrowing or obstruction of the tear ducts.