I know this is a weird question but here goes,I've been treated for sinus infections and my glands under ear lobe (side of neck) always swell, especially the right side. I thought that was why I was so tired, I know now it is the valve issue. Anyways I just finished amoxicillian 2 days ago and the gland on the right side has started swelling again. Has anyone else had anything like this and does it have anything to do with severe mitral valve leak? I'm wondering should I just take antibiotic all the time until I see the surgeon?