hello doctor my son is 10 month 8 days old now now is using ultra D3 only pliz tell me any vitamin for winters

A. winter season is approaching so special care is required specially for children . try to maintain proper temperature as children have a weak thermoregulatory mechanism. skin dryness should be avoided . seasonal flu and other Infection should be taken care appropriately . A good healthy diet and pgroper vaccinativon is important as well .