<human>: my 2yr old son has been having a constant runny nose and cough for the past 4months. he gets green running nose that lasts a while and then the cylce begins with the clear snot which eventually turns to green. i tried giving him claritin which worked good but l stopped it came back.
<bot>: Hi... Thank you for consulting in Chat Doctor. Cough and cold are viral 95% of the times in child Chat Doctor.  For cold, you can use anti-allergics like cetirizine and for nose block, saline nasal decongestants will do. Paracetamol can be given in the dose of 15 mg/kg/dose (max ceiling dose 500 mg) every 4-6th hourly, that too only if fever is more than 100F. I suggest not using combination medicines for fever, especially with Paracetamol. For cold, you can use Cetirizine at 0.25 mg/kg/dose every 12 hourly for 3 days. For nasal block, plain saline nasal 