If there is a sea urchin stuck in the flesh, you need to take out the stinger in time, and then treat the wound according to the severity of the wound after removing the foreign body, there are the following cases: 1, if the stinger is stuck into the flesh is relatively shallow, not causing bleeding from the wound, the patient can clean the wound, use iodine pov to disinfect it, and then bandage it with a bandage or gauze, and the wound will be healed in 2-3 days. 2, if the wound is red, swollen, and itchy, Painful symptoms, indicating that the sea urchin spines carry a large number of microorganisms, leading to possible inflammation and infection of the wound, the patient can be appropriate to take antibiotics for 1 week. 3, if the sea urchin is stuck into the flesh very deep, resulting in skin surface ulceration as well as active bleeding, you need to go to the hospital as soon as possible to see a doctor, remove the foreign body and then carry out a thorough disinfection of the wound, local stitches of the blood vessels of the active bleeding, and to strengthen the trauma of drainage, the intravenous application of cephalosporin antibiotics, the wound will heal. Intravenous application of cephalosporin antibiotics, usually 7-10 days after the wound can be completely healed.