There are many such health problems in winter which increase a lot.

Asthma patients should not consume cold and sour things. Like ice cream, cold water, lemon, pickle curd, etc.

In the winter season, a cup of tea or coffee gives warmth to the body, but asthma patients should not consume too much tea or coffee.

Asthma patients should avoid eating such things in which preservatives like sulphuric have been used. Like pickles etc.

Asthma patients should not consume cold drinks. Cold drinks can harm asthma patients.

Asthma patients should avoid consuming curd. This is because curd is cold and can harm you.