Experience instant cooling relief with AO Lab Spa Cooling Patches. These stick-on cold therapy patches provide up to 4 hours of soothing comfort to help relieve fevers, muscle soreness, migraines, headaches, and general aches and pains. No refrigeration is needed—simply apply to your forehead or affected area for an instant cooling effect. The flexible, stay-in-place design ensures long-lasting comfort, making these patches perfect for on-the-go relief, travel, or home use.