She might have been stung or bitten by something. Check it to make sure there are no slivers or thorns or anything caught between the pads.
For today, soak it in warm water with epsom salts, 1 tsp epsom salts to 1 cup of warm water. Soak it about 5 minutes about 3 or 4 times a day.
Epsom salts are available in your pharmacy and relatively cheap. |