Causes
A bee, wasp or hornet sting. Dogs often try to catch them and get stung on the face or mouth. A sting inside the mouth or throat is more dangerous.
Diagnosis
Diagnosis based on the circumstances and the clinical signs. The vet will assess whether there is an allergic reaction.
Treatment
Local reaction: remove the sting if it is from a bee, apply cold to the area, and monitor. Allergic reaction or a sting in the throat: EMERGENCY, treatment with antihistamines, corticosteroids and supportive care.
Prevention
Keep an eye on dogs that chase insects, especially in summer. Avoid areas with lots of wasps.

