ATTENTION: 1. Don't adapt to children under the age of 10. 2. It is recommended to use five to eight months. 3. Do not tear down this product, just wash it as a whole part, otherwise, it will be useless. 4. Push it in your nostril tight, and it will take some time to make you feel comfortable to breathe.
Note: It needs to be used for few days, then you will get used to this product and take benefit from it.