Hoarse voice, Sore throat, Vitamin C and Electrolytes

I usually get hoarse voice and/OR sore throat if i talk for few hours at a stretch or if i lecture with loud volume for 1 hour. This could be due to easy bruising of throat muscles and vocal cards and less hydration of throat muscles and vocal cards.

The possible solutions/treatments to these problems can be as follows:

1. Take vitamin C

2. Stay hydrated - Take electrolyte solutions before lecture

Update on 20 Sep 2020:

Folic acid may be helpful. Please see the effect of folic acid in another post.