An outdoor first aid kit is a first aid kit designed for outdoor activities. It contains basic medical supplies and tools needed to deal with various outdoor emergencies. These situations may include but are not limited to injuries, getting lost, extreme weather conditions, etc. The following are some application scenarios and recommended items for outdoor first aid kits:

Application scenarios:
1. Injury treatment: such as cuts, abrasions, fractures, etc.
2. Burns and sunburn: burns or sunburns that may be encountered during outdoor activities.
3. Insect bites and snake bites: emergency treatment of insect bites or snake bites.
4. Heat stroke and hypothermia: first aid measures in extreme weather conditions.
5. Altitude sickness: altitude sickness that may be encountered in high-altitude areas.
6. Lost or trapped: first aid and survival measures when lost or trapped in the wild.
7. Water intoxication and dehydration: prevention and treatment of dehydration during long-term outdoor activities.
8. Food poisoning: treatment of possible food poisoning situations.

Suggested items to include:
1. Band-Aids and bandages: for covering and bandaging wounds.
2. Disinfectants: such as iodine or alcohol cotton balls, for cleaning wounds.
3. Painkillers: such as ibuprofen or acetaminophen, for pain relief.
4. Antihistamines: for allergy symptoms.
5. Tourniquet: for controlling severe bleeding.
6. Venom extractor and snake bite bandage: for treating snake bites.
7. Ice packs or cold compresses: for reducing swelling and pain.
8. Sunscreen: for protecting your skin from UV rays.
9. Insect repellent: for preventing insect bites.
10. Personal protective equipment: such as disposable gloves, for protecting yourself from infection.
11. Flashlight and spare batteries: for lighting when there is no power.
12. Whistle: for signaling for help.
13. Multi-purpose knife: For multiple purposes, such as cutting, bottle opening, etc.
14. First aid manual: Provides basic first aid instructions and steps.
15. Thermal blanket: Maintains body temperature in low-temperature environments.
16. Water purification tablets or filters: Ensures the safety of drinking water.
17. High-energy food: Provides energy during long outdoor activities.
18. GPS locator or map and compass: Helps determine location and navigation.

Outdoor first aid kits should be personalized according to the specific activity type and environment to ensure that they contain the most suitable first aid items. At the same time, regularly check and update the items in the first aid kit to ensure that they are in good condition and ready to use at any time.