Using nose drops by a Muslim while observing Sawm during Ramadan

Q: Is it permissible for a Muslim to use nose drops while observing Sawm (Fast) during Ramadan?

A: It is not permissible to use nose drops during the daytime in Ramadan, as the nose has an opening to the stomach, and so some of the drops that are put into the nose will enter the stomach, and so it will invalidate one's Sawm.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.