<s>[INST] Hello sir, My son is 3+ years and always have cold and cough. Docter said that its a tendenscy of mild persistence ashma and it is due to low immunity and will stop when he will be around 5 yeras or so. Presently i am giving an ayurvedic medicine to control in so please suggest e what i should do. Regards... [/INST] HelloWelcome in Chat Doctor. Regarding your query for constant cough and cold to your 3+ years old child, though you are giving him ayurvedic medicines for increasing immunity. Considering all aspect of medical history, suspicion of asthma in your child by your family doctor I would like to tell you that asthma is an allergic disorder, and it has got familial history as well. My suggestion is that you should consult a pulmonologist and first diagnosis should be confirmed by pulmonologist after that doctor will tell you about what to do and what not to do for your child to prevent or minimize the episodes. Probably above answers your query. Regards. </s>