A 22 yeаr оld wоmen presents with а 4 dаy histоry of swelling and pain in her right inguinal area. She has no past medical history. She states there has been increased swelling and tenderness a few days after noticing an ingrown hair in the area. She has no history of skin infections. Her temperature is 99.2*F and she appears well. Along the right inguinal crease there is a 5 cm x 3 cm area of induration with central fluctuance. The area is tender to palpation, especially toward the central portion. There is no erythema, streaking or crepitus. The rest of her examination is unrevealing. Which of the following next steps is most appropriate to manage this patient's skin lesion?