8 days ago I came home from work and from when I got out of the car to the house a red hard lump appeared on my neck under my ear lobe. The lump went down, but tenderness under my jaw and in my neck soon came along with a lot of post nasal drip, but barely any congestion in my nose. The doctor told me that it was probably just a cold and advised me that she felt no lymph node swelling. The next morning, I woke up and I felt better. My husband checked my neck for me to make sure the swelling was still down. 20 minutes later I went into the bathroom and there was the red hard lump again in the same spot. Looks very much like a mosquito bite, but without itching or pain that always accompanies bites I've gotten all my life. That was 2 days ago. The post nasal drip has continued and now I have a sore throat from the post nasal drip. Negative for flu. Negative for strep. I also had a full blood work up done in a hospital 30 days ago and no problems were noticed.