<s>[INST] DEAR SIR I HAVE A LUMP ON MY LEG WHICH IS THE SIZE OF A 10 PENCE COIN AND IT IS ITTICHING A LOT IT SEEMS TO REACT TO THE HEAT I WENT TO SEE MY DOCTOR LAST WEEK AND HE GAVE THE CREAM HIRUDOID BUT IT SEEMS TO BE MAKING IT WORSE I WOULD BE GREATFULL IF YOU COULD GIVE ME SOME ADVICE AS TO WHAT THIS LUMP IS.THANKING YOU MATTHEW HAYES [/INST] Hi, Dear thanks for the query to Chat Doctor virtual clinic. I studied your query and understand your main health concerns. The lump with itching on your leg needs more information and photograph uploads before its cause could be opined.What's the location of the lump on the leg? Is it red (Urticaria)? How long it is there? Is it circular with popular rash-suggesting Ringworm-which is very common. Whether it is soft or hard?mobile or fixed? It could be boiled -an infection of the hair follicle. With limited information from you, Its very difficult to opine on the itching lump, as it could be due to any of the above and many other causes.Hence, I would advise you to consult Er primary care doctor and dermatologist if need be, with his advice, who would clinical check up and treat the lump accordingly by medicines like antifungal-clotrimazole ointments for ringworm and as need be. Hope this would help you to plan treatment with your doctor. Write excellent review if this reply helps to control your emergency health problem. Your experience and comments would help improve my rating for others. Visitors to Chat Doctor. Welcome for any further query in this regard to Chat Doctor. I would love to help you out of this emergency health issue. Wishing you fast recovery. Have a good day. Chat Doctor. N. Senior Surgical Consultant M.S. Genl-CVTS </s>