I have noticed a grey hair strand in my baby's head 2 months back and thought it could go off and may be due to his cold and fevers he had in previous month's .but it's still there and I doubt there are two . I am worried now is this any underlying issue that I should be concerned or can you please suggest any multi
vitamin or
B12 that can resolve this. Can I use zincovit drops? Wht should be the dosage? He is 12.6kg weight.