What causes a painful fluid-filled cyst on the leg?
Infective lesion. guidelines require further inputs.
I have evaluated your query thoroughly.
* This seems more likely to be an infection in some type of soft tissue lesion.
Kindly provide further details so that I can answer your query completely.
1. Fluid sac - duration, progress, appearance, overlying skin changes in terms of redness or others.
2. Fever if any.
3. Systemic disease or diabetes or others.
4. If possible, kindly provide a photo picture of the same in follow up session for better evaluation.
Till you answer this, intake of ibuprofen if no history of
drug allergy to the same.
Dr. Bhagyesh V. Patel, General Surgeon