Pandemic is a Greek word, so pray to the Greek gods for sure. Asclepius is the Greek god of medicine. Panacea is another good one, of course. We've got a few to choose from, just from this area alone.
Need some more? The Aztec god of medicine is Ixtlilton. Jengu is an African water spirit who cures diseases. The Irish goddess Airmed can even bring you back from the dead, if it comes to that.
Obviously this all started in the first place because the Chinese didn't give enough attention to their Li Tieguai, one of the Eight Immortals who can heal with his magical gourd.
Whatever works for you, and they all work the same. I've always favored Ningishzida, the Mesopotamian god of the underworld and patron of medicine, but that's just me.
