This is one of series of posts on caring for your voice.
#1 Hydrate – keep your body hydrated, if possible, have some humidity in the air:
Dry vocal cords in a body which is dehydrated tire and roughen very quickly
#2 Rest – Short rests do help in the midst of a long day of vocal use. Long rest after long period or intensive vocal usage is needed.
Both stresses on the vocal cords: pressure and vibration made rest necessary
#3 Variety – Animate your speaking and talking. This variation gives your vocal cords more chances to stretch and relax and move through various positions.