Do not try to pull the hook out if it has penetrate past the barb. Seek veterinary help. Insects Ingestion of Insects - vomiting, weakness, diarrhea, disorientation, difficulty breathing, seizures. Of will drool or have irritation around the mouth area from bites or stings. Give water, induce vomiting, seek veterinary assistance.
Dogs have less reaction to stings than people.
You can usually find the stinger and remove it. Most common areas are around the face and particularly the nose. Reduce swelling with ice wrapped in a towel. Apply ice wrapped in a towel for 10 minute intervals to reduce swelling. If poisons is suspected seek veterinary help.