Whether or not a wasp sting will heal naturally depends on the type of wasp and the severity of the sting, etc. In the case of small wasp stings, they can usually heal themselves gradually within a few days after local flushing and disinfection of the wound. The most important thing is that if you have a large wasp sting, or a heavy sting, or a large number of sting sites, resulting in local redness and pain, the possibility of self-healing is relatively small, and if not treated in a timely manner, there may be other toxic reactions, even life-threatening. In general, wasps will sting people with needles into the body, thus injecting bee venom into the body. The first thing you need to do is to see if there are any needles in the injured area, and if there are, you should use sterilized tweezers to pull them out at first to reduce the continued injection of poison. If you cannot pull it out by yourself, you should go to the hospital in time to be treated by a doctor through professional medical equipment. Unlike common bee toxins that are acidic, wasp toxins are usually alkaline and need to be cleaned with weakly acidic solutions, such as vinegar solutions. After cleaning, local application of Nantong snake medicine can be applied to relieve the swelling and pain. If necessary, you can also take oral anti-histamine drugs such as loratadine to prevent the occurrence of skin allergies. If the sting site expands rapidly within a short period of time, or if the sting area is large and causes intense swelling and pain that appears to persistently worsen, it is advisable to seek medical attention as soon as possible within 6 hours to prevent wasp toxins from causing anaphylaxis, cardiogenic shock, and other serious consequences. In addition to local topical anti-inflammatory and pain-relieving mixture of saline, lidocaine and dexamethasone for the wound, oral anti-allergy medication should be administered, along with oxygen and other first aid treatment.