Do consult once with your Paediatrician only,they will suggest you regarding vitamins...
Your baby is too small,
Don't self medicate...

Consult once with your Paediatrician,they will suggest you ...

Hi give nasal saline drops in both the nostrils and suck it back with nasal bulb to clear the airway and stuffed nose use humidifier in baby room to provide humidification and breastfeeding frequently ur baby for hydration

Hi you must not use it without prescription

Hi that's normal condition, give paracetamol syrup according to the packet instructions if temperature is 100.4 degree or more

Hi get a stool test done once by paediatrician

Hi what is the temperature of baby with thermometer?

Hi can you send image of rashes?

Hi get it examined by paediatrician immediately for medication required?

Hi if temperature is 100.4 degree or more then it's fever and give paracetamol syrup according to the packet instructions and if baby is is passing less urine too along with vomiting then get it examined by paediatrician