Harsh tooth pain??? Does that mean your pain is lingering all along?? As you mentioned hard candy, you might have
1. Decay
2. If pain on biting, tooth might have
chipped off or fracture (radiograph required to confirm)
Next Steps
please visit a dentist ASAP who would guide with proper line of treatment with the help of radiograph.
Health Tips
avoid eating anything hard, sweet, sticky or spicy food until you go to a dentist
all the best