To start I'm a 23 year old male. About a month and a half ago I had a sinus infection that went on for about 3 weeks, I underwent 14 days of antibiotic treatment with 8 days worth of predniSONE at the start of the antibiotic cycle. At the time I never even tried to feel my lymph nodes and the doctor (ENT) I went to never mentioned them being swollen.
Now to today: My sinus infection is gone, I still have a stuffy nose and post nasal drip, but other than that no symptoms.
3 days ago I noticed a lump in my neck just below the jaw line, that is lined up with the front of my ear. This lump is about 1cm to 1.5cm wide, its moveable (as in when i put my finger on it in the middle of it, it will move to one side of my finger to the other). There is no pain and I don't think I would even notice it being there if i didn't happen to feel it the other day.
Now my question is; Is this normal for 1 lymph node to be swollen like this after a sinus infection? Should I even worry about this? how long should I wait to go see my doctor? and if i must go to a doctor, would an ENT doc be my best bet to get this figured out?