There are a number of reasons why your snake might sneeze. It could be a sign of a respiratory infection or it could be due to a foreign object or irritant in the nose. It could also be a reaction to a temperature change or simply a way to get rid of any excess mucus in the nasal passages.
If your snake sneezes frequently it is best to take them to the vet to rule out any serious health problems. A respiratory infection can be serious and even fatal in snakes. If the vet does find an infection they will prescribe antibiotics.
If your snake sneezes only occasionally and there are no other signs of illness then there is likely no cause for concern. However if you notice your snake sneezing more frequently or if they seem to be having difficulty breathing then you should take them to the vet as soon as possible.
Why did my snake sneeze?
Your snake may be sneezing due to an irritation in its nose much like how humans sneeze when they have a cold or allergies.