It wasnt the wound that I asked for the color, it is the foot and ankle that you said was swollen. I can't see you to know how swollen you are talking about, but if the wound is all along a side and the whole foot and ankle is pink, that makes the wound sound like the infection has spread. That is the symptom you are describing that is the most worrisome. If the infection has spread to the skin tissues of your food and ankle, this is called cellulitis, and it can be hard to cure, the longer it has to spread. If your foot is pink and swollen, and especially if you see any streaks going up your leg from the wound, then you need to see someone for antibiotics soon.
Besides that, care is soap and water daily. If the wound is open, use an antibiotic cream like neosporin or triple antibiotic on those areas. Not on a dry scab, as that is a natural bandaid. If the wound is large and irritated by you clothing, then go to your local Drug store to buy gauze with tape, or the pre-made large dressing covers that are available.
For the edema or swelling, elevate your leg to hip or even better, heart level at least 3 times per day.
This should answer your question, but please write back if you need further clarification.