My ENT says that the deviation is very slight but that nostril never feels normal. Should I have the septoplasty?

Even mild nasal narrowing can effect singing. However, it is hard to predict the changes in voice and singing after ANY change in the nasal passages. It can be a change for better or worst. You should get a second opinion as well and if you are certain that it is effecting your singing then get a conservative septoplasty.RegardsDr. Janjua

 If you only have a very slight deviation and no nasal obstruction, then there is no medical necessity to perform the procedure. Best to leave well enough alone.