<s>[INST] on the arch of my foot it is very itchy and i can feel a lump. if i itch it it becomes very painful and swollen and the pain travels through my leg. by putting ice on it, it does die down but it is still there. i cant remember getting bitten or injured so i am worried as to what it is [/INST] Hi, thanks for the query to my Chat Doctor CLINIC.-In my opinion-You are suffering from-mostly ? Plantar-psoriasis / or venous-eczema.-Consult your family doctor / and skin doctor and investigate to fix the cause of it.-Remedy-Would be for psoriatic-ithcy lump-Tb-Antihistaminic-Dipsalic oint--Urea cream application or-If venous eczema-with lump--Rest /Elevation,-Venous Stocking -and Correction of the Varsity by ELA-endo-venous-laser-ablationcorrection of the incompetent varicose veins.-Consulting skin doctor would help you more. Hope this would resolve your itchy lump in arch of foot. Wishing your recover fast. Wellcome to my Chat Doctor Clinic again. Good night. </s>