I had sore throat, which was quite itching for 3-4 days while coughing was usually more during sleep. I gargled 2 times daily for 5 days. A small pea sized soft gland like thing formed on my left side of the neck during that time which was a bit painful when pressed and was movable, but the pain went away. It has been 16 days since I fell ill and the cold has resolved but the pea sized thing has still been there in the same way now without any pain. Also I have a little stuffy nose sometimes. Do I need to get myself checked or will the small pea sized gland go away on it's own?