Laundry lis loft

My 6 month old has a very dry throat, his voice is very crackly. Likely causes and good responses? - dry throat for months

In addition to a cold light of reason and 'relaxation' for an answer (we both know), in particular, we wondered if:

1) should the daily care of the day did not (which is covered with half an hour walk in the morning until the middle)?

2) nothing else to do?