You can take probiotics when your baby has a cold and cough, and it does not have any effect on the treatment of cold and cough. However, probiotics are generally used to regulate the ratio of normal intestinal flora, and only when there are some uncomfortable symptoms in the gastrointestinal tract, such as diarrhea or indigestion, it is relevant to take probiotics. If you have discomfort in this area when you have a cold and cough, you can take probiotics; if you do not have discomfort in this area, the effect of taking probiotics is not too great. In addition, babies may be treated with antibiotics when they have a cold and cough, which may have an effect on the bacteria in the intestinal tract or the probiotics they eat. So try to eat probiotics some time after the application of antibiotics, with a longer interval between it to make the probiotics effective. If feasible, you can start taking probiotics after the application of antibiotics is over.