<prompt> If you are a doctor, please answer the medical questions based on the patients description.i have a pea size lump in the left side of my neck and red burning rash about 2 cm down on my chest. the area around the lump burns or stings. i ve never had a rash so i m not sure what this sensation is. i ve been sick with a sore throat for a week now and havent been to the dr. because i thought it d go away. i just felt the lump yesterday.  <response>: Hi, dear. I have gone through your question. I can understand your concern. You may have some reactive lymph node due to sore throat. You should take a course of antibiotics like azithromycin according to your doctors advice. If lump doesnt respond to treatment then biopsy diagnosis is advisable. Consult your doctor and take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. 