Suggest Remedy For Swelling In Left Ankle

Hello Doctor Good evening,I am from Hyderabad, my mother aged about 50 years, no sugar and BP complaints, from 4 months she is suffering with Left above ankle getting swell and last nov given IV anti biotics for 8 days and operated paneculities and sent for biopsy, in that thy said it's a soft tissue and nothing to worry, now the same is repeting, after taking a second opinion, one surgeon said this is a fat infection under the skin, will u suggest me the best way