1, confirm the dog's injury: check the dog's mouth and tongue for hedgehog thorns. If there is, take it out carefully with tweezers or gloves to avoid causing more serious wounds.
2, cleaning the wound: wash the dog's mouth with warm water and soap to avoid infection.
3. Application of ice pack: Apply ice pack or cold compress to the dog's mouth to reduce swelling and pain.
4. Seek medical attention: If the dog's mouth is swollen seriously or has been infected, seek medical attention immediately.