<s>[INST] my daughter is 2and half year old.she is suffering from very severe cold &cough since 3months.we have met children specialist and he gave her cefidinir and cough syrup.but there is no change,and now bad smell comes out from her nose &mouth.what could we do now?please suggest any medicine for her. [/INST] Thanks for your question on Chat Doctor. I can understand your concern. Better not to start any Chat Doctor. She is having chronic cough and cold not improving with routine antibiotics. So we should definitely find out cause for this. So consult pediatrician and get done clinical examination of respiratory system and chest x-ray. Possibility of lung infection or allergic asthma is more likely in her case. She may need higher antibiotics and anti-allergic (montelukast)  </s>