First, read the English article below.

In order to treat a sea urchin sting, you must be certain you were stung by an urchin and not another marine animal.  Sea urchins have flat or globe shaped bodies and are covered in spines. They are found in oceans worldwide, but are more likely to be present in warmer regions.  Sea urchins lurk in rocky parts of the water and will sting if threatened. Most people get stung when they accidentally step on an urchin.  You can successfully manage most stings on your own. However, if you have difficulty breathing, nausea, chest pain, or signs of infection like redness and pus you should seek care immediately.  You should also seek medical care if you were stung around a joint, as the spines may require surgical removal in such cases. Sea urchins are flat, globe-shaped animals. While generally non-aggressive, urchins will sting if stepped on unintentionally. Certain parts of a sea urchins body release poison.  Sea urchins release venom through their spines and pedicellaria. Spines produce puncture wounds and can stay in skin. They should be removed immediately in the event of an attack.  The pedicellaria are seizing organs found between the spine that latch onto a target when an urchin is attacked. They should also be removed quickly after being stung. After being stung, remove the spines as quickly as possible to minimize your exposure to venom.  Use tweezers to pull out the protruding ends of large spines. Move slowly so that the spines does not break off, as medical treatment will be needed if this occurs.  Hot wax can also be used to remove spines, if they are particularly deep and cannot be removed with a razor. Apply hot wax to the area, let dry, and remove. The spines should be pulled out with the wax. Longterm medical problems can occur if spines are not removed properly. If you're not sure you got all the spines out yourself, see a doctor. The pedicellaria must also be removed after an attack to stop exposure to venom.  The pedicellaria can be removed by applying shaving cream to the infected area and... 

Now, please write a short abstract for it in Chinese. Abstract:
识别海胆刺伤。 了解海胆的有毒部分。 移除棘刺。 移除叉刺。