My ankles swelled from time to time and got brown patches that did not itch. Luckily the doctor I went to recognized the blood pressure medicine I was on (Amlodipine) is known for swelling ankles. The brown discoloration is caused by the swelling. I looked it up and swelling of the ankle area was the most prevalent side effect for amlodipine. Thirteen percent of users experienced swelling. I got off amlodipine 2 months ago and have not had an episode of swelling since. It may take years for the brown to totally fade.
Hello,
There are many possibilities from your symptoms. It can be due to hives, stasis dermatitis, lichen simplex chronicus or an allergic reaction.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.