Weeks after having Strep Throat, my lymph nodes are still sw

At the end of March, I was diagnosed with strep throat and took the shot. My fever and everything went away except for a sore throat. The sore throat is still here after 4 weeks. I am still coughing up lots of puss balls. Once in awhile, I also feel like I am choking and have to cough real had to catch my breath. Also, my right side under my jaw bone and ear are swollen, so swollen you can even look and see it. I am assuming this is swollen lymph nodes??? Do have I have to go see a dcotor or is there something I can do myself? Thanks !!!