my baby is 5 months old. his birthday weight was 2.2 due to he born before 1 month but now his weight is 5.9 but he always have cold cough continuesly... if he don't cough n I stop his medicine in 2days again he gets cold from jis birth m putting him cold medicine only due to cold I even don't give him vaccine of 2 1/2 months m very much worried because it's just getting delay in his vaccine