Here's what you should do:
1. Contact your veterinarian immediately. They will be able to assess the situation and advise you on the best course of action.
2. Provide the vet with details: Tell them how much licorice the dog ate, the type of licorice (black, red, etc.), and when it happened.
3. Observe your dog: Watch for any signs of illness, such as vomiting, diarrhea, lethargy, or tremors.
Remember: It's best to err on the side of caution and seek veterinary help immediately. Don't try to induce vomiting unless directed by a vet, as it can be dangerous.