Hi.. Can understand your concern.. As per your complain it seems that swelling on both sides of cheeks and face can be due to viral infection of the parotid gland known as Mumps.. Mumps also known as Epidemic Parotitis is a VIRAL infection and it can affect either one side or both sides Parotid glands which are major salivary glands leading to the above explained symptoms.. The symptoms subside within 7 to 10 days after the symptoms appear.. Consult a Physician and get evaluated and investigation like blood test,x ray and salivary amylase test can help in confirmation of the cause and treatment can be done accordingly.. There is no exact treatment for mumps and only symptomatic relief can be provided.. For pain you can take Acetaminophen or tylenol for relief.. Doing cold compresses can be relieving.. Take plenty of fluids which can include water,fruit juices,soups etc.. Take a soft and nutritious diet.. Take sufficient rest.. In case if the symptoms persist for more than 10 days without any relief you should consult a physician.. Although after occurrence of mumps once the person becomes immune for lifetime and and relapse can be with very mild symptoms.. Hope this information helps.. Thanks and regards..