Hey dear, u can just cut white onion (not regular one white one) and put honey on it, leave it for 10 mins it will leave it juices then just feed the juice to him, 1tsp is enough twice a day. Also u can use saline drop for nose congestion. Also massage him with sarso ka oil, just heat the oil add two cloves of garlic. Then massage the oil once it is cool down. Hope this helps, keep him hydrated feed as much water n breastfeed.