Swollen-ness deals with fluid retention and perhaps inflammation. Have her rub carrier oil (olive oil, coconut oil, etc.) on the swollen skin and then rub in some peppermint and/or euclayptus oil (3-4 drops) on top of the carrier oil. Have her soak in hot water and sea salt. Dherbs formulas I recommend are Headache And Pain Formula , Central Nervous System formula, and Kidneys, Bladder & Adrenals.
Central Nervous System
Kidneys, Bladder & Adrenals