my son's is 10 months old ..... suddenly his voice changed, is there any problem and give me the solution

A. Saffron milk is a great home remedy to help kids get rid of cold and cough. Add a few strands of saffron to a cup of boiled milk before letting it cool. Strain the saffron and feed it before your child sleep to treat cold and cough. You can also mix a few strands of saffron in one or two tsp of milk and apply the same on the forehead for instant relief from cold.