How long will it take for my voice to get back?

[Horus]

Warm water, alright if I just drink warm water and barely talk how many days do u think itll take?

Depends, it could take more than 2 days..
But barely talking still isn't a good option if you wanna get your voice back. When I lost my voice because of problems with me inhaling smoke from my environment, I communicated with my friends using a Notepad xD

 

[~Sky~]

Some have already said it, but gargling salt water is your best bet. Long and often, with no fear.

Also, limit your talking and do singing/breathing exercises.