My baby is 3 nd of month old he’s voice is changed due to cold for past 3 days may I knw when it will cure again when he’s voice will change back to normal

A. hi parent please consult your doctor and investigate if she doesn't have inflammation on her lyrinx.. give her medication as suggested by your doctor keep her well hydrated by giving her breast milk as pr her demand take sunbathing daily with her head and ears covered in the morning but not under cloudy sky