<s>[INST] Last 2 months my 2.5 Yrs kid is suffering with cold and running nose and we saw an ent specialist and completed one course of antibiotics now continuing with allegra syrip for cold and otrovin nasal drops .they said this is because of enlarged adenoids.Can you help me to identify the root cause.. [/INST] Hi.... by what you quote I feel that your kid is having a seasonal rhinitis or a moderate to severe persistent allergic rhinitis. This is definitely not an infection so no need to use antibiotics at all. Simple logic is that an infection cannot go on like this for 2 months. This is definitely allergy. Coming to your query about adenoids - you should consider adenoids only if the kid is having snoring and inadequate or disturbed night sleep and daytime sleepiness. If these are not there this could be simple allergic rhinitis. I suggest you consult a pediatric allergist who can assess the kid and prescribe intranasal steroid which is the Chat Doctor. Regards -  </s>