I have been having a mild swelling on lymph node under my jaw from about a month and a half. I did ultrasounds twice and there's a mild reduction in size from the last ultrasound. Doctors say it's a reactive lymph node and isn't a cause of worry. However, since it's been so long and there's still some swelling, I am super worried that I may have cancer. I have been prescribed antibiotics and I finished the course of 5 days. Even though, I don't visibly have any cold or infection as such. Kindly help me figure out what it could be