If you develop altitude sickness after making a reservation at Jade Dragon Snow Mountain Glacier Park, the first step you should take is to rest in time to avoid overexertion, and consider whether you need medical treatment based on the severity of your symptoms. Here are some possible responses:

  1. Rest appropriately: Maintain adequate rest and avoid strenuous exercise to reduce the symptoms of altitude sickness.
  2. Replenish water: drink an appropriate amount of water to avoid dehydration.
  3. Take medications: With the advice of your doctor, you can take some medications to alleviate altitude sickness, such as Rhodiola rosea, Gaoyuanan, etc.
  4. Maintain ventilation: Maintain indoor air circulation to help relieve discomfort.

As for whether tickets are refundable, the general situation is as follows:

  • If you develop altitude sickness within the specified time and are unable to continue your itinerary, you can contact the booking platform or scenic spot customer service to explain the situation. They may provide refunds or change tickets based on the specific policies of the scenic spot.
  • The policies of different scenic spots and booking platforms may be different. It is recommended that you check the relevant terms when making a reservation or contact the booking platform directly to learn the specific operation procedures.

Please note that when dealing with refund issues, you should remain polite and provide necessary supporting materials so that the problem can be resolved smoothly.