Hi, You have painful peripheral oedema. Peripheral oedema can be the result of lots of conditions like heart failure, acute or chronic kidney diseases, deep vein thrombosis, blockage of the lymph system or hormone therapy. In your case, you have painful swelling and this symptom can be a sign of a local inflammation. Leg swelling can also be caused by inflammation in leg tissues. Inflammation may be a normal response to injury or disease, or it may be due to rheumatoid arthritis or another inflammatory disorder. My advice to you is to consult physically your local doctor because it is necessary to do some tests to reach the right diagnosis. Water pills can be helpful, but only after the diagnosis, you can have a specific treatment for your actual problem. Hope I have answered your query. Let me know if I can assist you further.