Be prepared! The list below is my recommended minimum number of items to keep in your horse trailer at all times. The list could be expanded into a seemingly unlimited number of items. Probably there is no way to be totally prepared for any and all potential accidents, injury or illness but we can try to be as prepared as possible. Keep these items in a water proof case if possible. Keep a lamenated waterproof card prominently displayed in your trailer with your contact information, your "in case of emergency" contact numbers, your veterinarians contact information.
* quilted bandage, disposable diapers or maxi pads
* wet wipes
* antibiotic cream or ointment
* roll of vet wrap / stretch bandage
* eye wash / skin wash
* PVP iodine solution
* rubber gloves
* adhesive tape / duct tape
* scissors / bandage cutter
* gauze bandage / gauze wound pads
* hoof boot correctly sized for your horse / horses
It seems a good idea to keep a horse health care / first aid hand book as well and to familiarize yourself with normal vital signs for horses. Consider:
Dr. Kellon's Guide to First Aid for Horses by Eleanor Kellon
Risa