I have had a problem with my ear canal being partially blocked for a few years. Some mornings it seems to be fully blocked and then it "clears up". I cannot currently go to the doctor because I don't have a health plan. If the cerumen inside my ear canal is hard, will irrigation with a syringe take care of it? Can I safely do it myself? I am worried that it might "not work" and that it will be completely blocked afterwards. Please advise.