Approx a month ago, i went to my doctors regarding a stiffened neck. I could barely look to the right and couldnt look to the left. The strained muscle was on the left side of my neck. During physical examination, my doctor discovered a swollen lymph node near the strained muscle and prescribed me Amoxil 500 mg TID and Flexerol 10 mg TID for the strained muscle. Since that visit, the neck healed up but the lymph node is still swollen. She then did more physical examination of my groin area and under my arms which nothing was apparently wrong. She has done blood work which all results came back ok. I have no obvious symptoms. And feel good. The doctor states she is sending me for more blood work and if all comes back clear, she think it would be best for a biopsy. Now, since i have no apparent symptoms, should i seek a second opinion before going through such an invasive procedure?