<s>[INST] My mom had a total knee replacement 8 days ago and has severe burning on the front of her knee. It s worse when she s sitting and extends her knee to straighten her leg. She s considering going to the Emergency Room. Is this level of burning pain normal at 8 days post op? [/INST] Welcome to Chat Doctor I have gone through your query and understand your concern. You are likely to be having burning pain due to some of cutaneous nerves may have been damaged during surgery of knee replacement. You should also look for other causes of neuropathy such as diabetes and thyroid disease by ruling them out. Analgesic such as ibuprofen for pain relief can be of use. Mecobalamine is of use to reduce burning sensations. You can discuss with your doctor about it. Hope your query get answered. If you have any clarification then don't hesitate to write to us. I will be happy to help you. Wishing you a good health. Take care. </s>