<s>[INST] I have a lump on the top of my right foot, which I ve had for a while now. The other night I felt a lump on the bottom of same foot, almost directly below the lump on top. It was very painful and made it difficult to walk. Do you have any idea what it would be? Thank you. [/INST] Hi. Read and understood your history of a lump on the right foot for a while, now the lump has extended to the lower part. This indicates that there is an infection spreading, and you need to take an antibiotic, anti-inflammatory medicines and may need incision and Chat Doctor.  Consult a General Surgeon for clinical evaluation and have a clinical diagnosis, substantiated with MRI if required. Further management will depend upon the response to the medicines. </s>