Hi, few months back my left ear started not to hear properly and also to have heart beats sound which are quite loud and annoying at night,I went to the family doc, got it cleaned but there was no difference, I have started consulting an ENT, she says I'm improving because at first she could not see my eardrum, she gave me antibiotics, I carried all the instructions but the heart beating sound and pressure imbalance is still present on my left ear. Please tell me how to treat this, and also what are the possible causes. I have had allergic rhinitis ever since I could remember.