My right ear is clogged and ringing?

I had a soar throat, nasal congestion, and a headache for about a week and half, I took some Sudafed and Tylenol to get rid of all these problems. When the symptoms where gone the next day my left and right ear clogged up. After about a day my left ear cleared up but my right was still clogged up and began to have a ringing sound which I have had for about two days. Eventhough its clogged up i don’t really feel any pain. Now i have setup an appointment with ENT doctor early next week but I am just wondering if there are any solutions to this problem, I have taken Sudafed & ear drops and neither of it worked.