My incision from having lymph nodes removed due to breast cancer has opened even more after an ER visit and a high dose of antibiotic treatment 2 weeks ago. The Oncologist said it has formed tunnels and did not say anything about there being an infection. He told me to schedule an appointment with my general surgeon next week. I fear it s infected and it should have been dealt with immediately. The ring of redness around the open incision is still there and there is an odor to it. How do I care for this open incision until I can get to the surgeon on Monday?? So far I ve just been rinsing it with tap water, wiping the surrounding area with alcohol prep pads, then putting a bandage over it.