Miliary tb. Is it itc burny nd deep red?

Hi doctor. I have been on miliary tb medications since last week of January. I got my sputum n ct scan done which confirmed miliary tuberculosis. It was already mentioned in my ct scan that I had an enlarged lymph node of 16.9×17mm on the left side of the neck above the collar bone, it got quite swelled by end of March. I got in touch with my pulmonlogist he did an fnac test which confirmed bacteria because of miliary tb.  With timeThe lymph node is little hard has deep red n has a burning sensation too..I was on a medication for 5 days named as trypsin chymotrypsin tablets...still it's hard and my doctor says it's too hard to be removed and has nothing in it ...it will go away in its own time..it might tak e up to 4 weeks as well...still i was worried and wanted to ask do these swollen lymph nodes take so much time like upto 3 4 weeks to settle back...why is it itc burny nd deep red?