This is blockage of the oesophagus (not windpipe) with food material.
Saliva and food material is seen at the nostrils. The horse is usually distressed, retching and coughing.
What to do:
- Take away all food and water.
- Keep the horse quiet and relaxed.
- The blockage may pass of its own accord with no intervention as the horse’s constant production of saliva softens the material that is stuck.
- Contact your vet for specific advice.