If baby sneeze and runny nose, its nearly always because its too cold.

Try to set air con to 26, and both ceiling and air con fan to 1.

Put socks and mittens on baby as well when they sleep. Do not let baby sleep in the same bed as you, baby must sleep in their own crib. If baby is sleeping in their own crib, make sure the mattress, pillow is clean. SUN DRY.