My right ear seems like it's blocked and I can't hear that well. Is there anything to get rid of the problem?

The ear problem started right after I had a really serious flu. It's really annoying because I tried everything to get rid of it like using alcohol with a cotton swab. I'm not sure what the main source of the problem is but I need it removed. I don't want to go to the doctor and get it syringed or anything. please help me!!!