Ear problem. Healthy ear. please help.

Hello Respected Dr. I was boxing with my friends for the first time and accidentally one of my friends punch strongly landed exactly on my right ear l was not able to hear any sound through my right ear. I had a lot of pain in my right ear the night I tried to sleep but wasn't able to, the next day the pain diminishes and I start hearing sound in my affected ear but it was very low compared to my left healthy ear so as I my ear was healing I thought l do not need to visit a doctor for this case. But after 4 days the sound quality remains low and is not improving. I blew out air by pinching my nose and I noticed that the air passed out from my right affected ear whereas the air got blocked in my left healthy ear. Please help. Thank you.