Microsuction

I scheduled a microsuction for both ears on monday and I'm really nervous, i'm told that my ears are completely blocked when viewed from the outside but i can still perfectly hear and i have no problems with it.(aside from it being itchy and sometimes uncomfortable) So i have one question, will microsuction cause some kind of complication( for example, i sometimes experience tinnitus when putting olive oil but a really mild one)? Or will it be alright??