Had a gluteal abscess on left side about 2 weeks back. Drained and healed itself. At that time i got a low grade fever for a week around 99.4 F. Then it resolved. But at times i still sometimes feel feverish and body aches specially from evening and temp rises to 99.0 F sometimes. Also my left inguinal lymph nodes swelled up. They are still palpable. What to do? I am quite worried due to fever and node swelling. Is this something concerning.