Whatever you do please take care of your hearing. I also play in a band (drums) and I developed tinnitus because of bad sinus problems. Believe me when I say you don't want this horrible condition. A constant ring in your ears 24/7 that doesn't go away. It will change your life. Luckily I don't show any hearing loss so it's assumed that the tinnitus isn't due to a senorinaurel hearing loss.
Bottom line. Protect your hearing. Read up on Tinnitus so you learn about it and are educated and don't end up with it.
Chronic sin. does not really indicate what your hearing status is. But lets assume you have conductive hearing loss due to the sin. A conductive hearing loss would mean that you have a build up of fluid within your middle ear cavity that causes a temporary hearing loss. The hearing will return back to normal when the fluid is gone.
Now that said, if you do have a conductive hearing loss, then you essentially already have "ear plugs" on. The ear plugs being the fluid in the middle ear. The fluid in the middle ear prevents the small little bone that vibrate in the middle ear cavity from vibrating efficiently. It is much like trying to run in a swimming pool. You can not run because the water causes too much friction. The fluid also cause pressure on the ear drum, preventing it to vibrate freely.
OK, so if you have fluid in the middle ear cavity, then you have a hearing loss, then you add additional ear plugs "musicain plugs" now you are even doubly protected.
So long story short, wear your ear plugs just as always and you will be fine no matter if you have a build of fluid or not.