On monday I went to the beach and tanned about 20 min. I got home and I felt like my skin was on fire. The next morning I woke up and my legs were swollen and could hardly walk . Ive been keeping my legs elevated since and its three days.. This morning (thursday) I woke up and my legs werent swollen any more but I was a little precautiouse so I stood laying down with my legs elevated but when I stand up they start turning purple and start to swell up again.. What can I do?