I sing just about every day. The voice does get rusty if left unused. Even in public where I may not want tosing too loudly, I go over phrasing in my head or go over songs to memorize them better.I am not apt to pratice musical instruments though which might explain why I am way better at singing than I am at any instrument.
Kendall, just a thought. Not singing for a while and then doing a lot of singing all at once (on tour or at a festival) puts a terrible strain on the voice...once your throat heals you might consider doing simple warm-up exercises each day. Consider it like the treadmill for the cardiac patient!
Peg