<s>[INST] I have a varicose vein L L E mid calf which developed a "boil, cyst"? started as small red circle thought spider or scorpion sting was asymptomatic day 1&2. Day 3 boil developed along with + 4 edema with red streaking knee to foot. no pain or itch. Day 5  I lanced boil at that time I discovered that if you touched the skin surrounding. stinging pain more associated with shingle type pain. after lance within 24-36 edema at +1 and surrounding redness which persists, my concern is today on RLE I have found another cyst forming on top of a varicose vein. Suggestions/ [/INST] Hi I do care for your concern.  You are suffering from varicose vein, the venous blood gets stagnated in the lower leg as cause venous pooling of blood. This cause edema to develop. Due to edema and pressure caused by it boil develops and the edema fluid escape out. The is nothing related to sting or insect bite. It is advisable to Consult a surgeon and get examined of varicose vein and to know about different treatment options available.  In most of the cases simple surgery will relive all the symptoms. For time being avoid standing for longer duration, elevation of limbs by using pillow at night will add to help. Hope I have answered your question, If you have more feel free to ask. Thank you. </s>