Get some gavistion tablets.
Before bed, disolve one or 2 tablets in about 5 -6 tablespooons of water.
If you wake up and your throat burns, first drink about 1/2 glass of room temp. or warm water.
Then swallow some of this mixture and go back to bed.
This helped heal my throat.
Water is good to drink at night, but never cold water at any time.
Cold stuff makes this worse.