I Have Been Sick For About 4 Days Now With

I have been sick for about 4 days now with a head cold. The worst symptom I've had with this is blocking of my ears. It seems like every time I try to unblock them, within the next hour they'll be blocked again. I have tried about every home remedy and nothing seems to be working. My left ear is still blocked and bothering me a lot. What should I do?