Hello.. This is Dr Rubal..
For home care of cold, may I suggest the following:
1. Hydrate - Give plenty of fluids
2. Rest - Keep at home, give rest
3. Steam - Give plain water steam inhalation for 15-20 minutes, atleast 2 times a day
4. Nasal suction - If your child is able to blow his nose, do that to keep his nose clean. Or you can use soft silicone nasal aspirator to clean his nose frequently
5. Superfoods - Give
Vitamin C rich diet at home. Give simple fresh home cooked food
6. Observe closely: in case of any new symptoms, please consult.