If your baby sounds hoarse after extended bouts of crying, you can blame the crying. Ditto for a cold or cough: a post-nasal drip and phlegm can affect those vocal folds and lead to hoarseness.
Why does my baby have a hoarse cry?
Many things can cause your child's voice to become rough, raspy, or hard to hear. Having a cold or a sinus infection, yelling or talking too loudly, being exposed to smoke, or breathing dry air can cause a hoarse voice. Your child also can have voice problems from pollution and allergies.
Should I take my baby to the doctor for a hoarse voice?
Sounding hoarse for a few hours or the day after a big game is nothing to worry about. Usually, the voice returns to normal on its own. But chronic hoarseness can lasts for days, weeks, or even months. If this happens, a child needs to be checked out by a doctor.