welcome to HCM.
read your prob, in this type of syndrome, arterovenous malformation occurs. due to this local symptoms like swelling , pain etc develop. it affects kidney
to reduce swelling n pain , she should put on tight fit apparel (dress) or wear tight band on the affected part, it will compress the peripharal artery
n veins n swelling will be lessen.
treat of such kind of syndrome is vascular surgery