When you hear a singer like the late Whitney Houston belt out a song like“I Will Always Love You,” you’re listening to a marvel of vocal skill, but what happens when a singer damages their voice? Singers of all ages come into Dr. Steven Zeitels’ medical practice with trauma caused by breathing dried-out air in planes or singing in towns or buildings that have unfamiliar allergens. One of his patients. Aerosmith’s lead singer, Steven Tyler, is nearly 70 and has been torturing his vocal folds since he was a teenager, but with Dr. Zeitel's treatment, Tyler can sing “Dream On” as loudly as when he was 25 years old.