Hi,
Welcome to the ehealthforum and I am glad to help you out.
When air gets into the ducts of the parotid gland, it's called pneumoparotitis and most commonly occurs in wind instrument players, glass blowers and scuba divers. Clinical treatment is the initial approach, and surgery is reserved for symptomatic and irreversible cases or chronic cases the management of which is excision of the gland.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care.