Vinegar should be poured over the wound caused by a sting, as recommended by Auttapon. He also cautioned against applying water to wounds or rubbing them with sand after they had already been injured. If a sufferer loses consciousness, it is strongly advised that they obtain cardiopulmonary resuscitation (CPR). According to Auttapon, officials have placed nets to prevent jellyfish from entering the swimming areas; nonetheless, they are unable to ensure that beachgoers would be completely protected from the jellyfish. In addition, he suggested that visitors pay attention to the warning signs that were posted at the beaches and heed the suggestions of the lifeguards. It is strongly recommended that tourists do not venture beyond the jellyfish barrier net and stay out of the water during the night or after it has rained. Auttapon noted that there are supplies of vinegar on the beaches that may be used as first aid in the event that there are any string injuries. On each beach, there is an orange pole with vinegar and instructions for first aid available to visitors. People who have been stung by jellyfish are required to call a toll-free number (1669) that is associated with the National Institute for Emergency Medicine. During the month of March, a hotel on Koh Samui hosted first aid classes that focused on the treatment of box jellyfish stings as well as their prevention. When swimming in the water off the coast of Koh Samui, Koh Pha Ngan, Koh Mark, and Koh Kood in Trat, visitors have been urged to keep an eye out for jellyfish. These islands are located in the province of Surat Thani. According to Auttapon Charoenchansa, the Director of the Department of Marine and Coastal Resources, the months of July through December are venomous jellyfish season in Koh Samui and Koh Pha Ngan in the province of Surat Thani. Meanwhile, the months of November through April are venomous jellyfish seasons in Koh Mark and Kood. The Chirodropidae Chironex indrasaksajiae, more often known as the box jellyfish, is the most poisonous species of jellyfish in those regions. Its venom is capable of killing anyone it comes into contact with, resulting in cardiac arrest and attacks on the nervous system as well as the circulatory systems in the lungs. After being strung, the venom has the potential to stop a person’s heartbeat anywhere from two to five minutes later.