<s>[INST] Hello, this is actually regarding my 7 month old son, who has been a little unwell the last 3 days with a cough and a cold, he has also vomitted twice and has had a temperature between 37.5 and 39, although it has dropped now however the last three poos he had had a awful smelling, dark green almost black and have slimey stringy bit in. [/INST] Hello, Cough and cold are viral 95% of the time in children. For cold, you can use anti-allergics like Levocetirizine and for nose block, saline nasal decongestants will do. For cold, you can use Levocetrizine at 1.25mg/dose as a single daily dose for 3 days. But usually it is indicated in above 6 months age. But unfortunately, this is non-OTC. OR The other alternative is Syrup Benadryl (12.5mg/5ml) strength. You can give 2.5ml three times a day for a period of 3 days. Although this is a first-generation antihistamine medication, this is an excellent cough suppressant, please. This is OTC. For nasal block, plain saline nasal drops will do, every 4-6th hourly to relive nasal congestion. If he struggling whilst lying in prone or supine posture - you may let him sleep in semi-recumbent position like in a car seat please. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Sumanth Amperayani, Pediatrician, Pulmonology </s>