Conversation: The conversation between human and AI assistant.
[|Human|] My dad fell about 10 days ago. He had alot of bruising and swelling. Hospital tests showed no breaks or blood clots( he is on blood thinner.) They told him to elevate it and use ice, but gave him no medicine. The bruising started going away, but he still has swelling and redness and the leg feels warm. He went back to the doctor on Monday. They told him to continue the elevation and ice, but still no medicine. When the swelling, redness and warmth of the leg had not improved, I took him back to the doctor yesterday. They called it cellulitis. They gave him a shot of antibiotics and a prescription for cephalexin (to start taking today). I have been measuring his leg in about the same spot everyday and it has been about 14 inches around at that spot (including this morning) I measured it about a half hour ago and it is now 14 and 3/4 in that spot.The redness has also increased. Do I need to take him back to the hospital or give the antibiotics more time? Thanks.
[|AI|]  Dear patient Your father has got rapidly spreading cellulitis possibly with abscess formation. He needs urgent attention as swelling is rapidly increasing. Take him urgently to hospital and get him admitted.  He needs course of intravenous antibiotics and ultrasound of local part to rule out abscess formation. If abscess is seen under ultrasound incision and Chat Doctor.  Do not take more time and shift him to hospital. All the best.