Thank you for your question,
does not have established role in such wounds, no large studies support that its use is good to support healing.
If you still have fever
after 3 days of antibiotics and swelling in increasing then this means that you need culture test of the wound as your antibiotic is not working.
IF swelling is same and there is no fever then you need to wait as it takes around 72 hours before swelling starts to go down.
Try to avoid this area from water, keep it elevated when not walking.
I hope this helps.