Unfortunately, due to the nature of our products, occasionally crystallisation can occur in the pump mechanism, preventing it from working. This can often occur if the oral spray hasn't been stored at room temperature or hasn't been used in a while.
This can usually be fixed by removing the pump from the bottle and soaking it in warm water for no less than 10 minutes. After soaking, press the pump down firmly a few times whilst it is immersed in the water to clear any crystallisation. The pump must be clear of all water and dry before returning to the bottle.
If this doesn't resolve the issue, then please contact our Customer Experience Team here.