@PaulAds I'm very sorry to hear that. I guess for a singer it's a bit like losing a limb.
I went to singing lessons for different reasons. When I started this songwriting project 3 years ago, I'd not actually sung for 13 years and my voice was shot. The singing teacher taught me lots of things and to be honest, the first lesson was spent mostly blowing through a straw and doing lip bubbles. Amazing results though as I have improved my tone, pitch, and range. On top of that, it is effortless now and I never need to strain.
My singing teacher was a qualified vocal health practitioner, and one time I turned up with a sore throat, so she took me through some very different exercises to repair my voice. I remember lots of Tsssss, and shhhhhhh and having to make gentle whimper sounds.
I have been to another singing teacher who admitted that she didn't know the first thing about vocal health which was worrying.
My only advice would be to look for someone who is qualified rather than just a singing teacher because there are no regulations in this field, and anyone could claim to be a singing teacher.