<s>[INST] Hello, my brother s feet are swollen and are causing him a lot of pain, he had outpatient procedure done on his back about 4 weeks ago to take the pressure off of a pinched nerve in his lower back that was causing him a lot of pain and was also making his left leg swell and hurt real bad and he could hardly walk, the surgery helped with that but like I said earlier now his feet are swollen and when he lays down he says it hurts his back to bad to elevate his legs and feet. He s been putting and ice pack on them but there still swollen. [/INST] Hello and welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. The pain and swelling can be related to arthritis or the compressed nerve. Cardiac and renal causes of swelling also need to be ruled out. Hope I have answered your query. Let me know if I can assist you further. </s>