infection salivary gland
If not treated, salivary gland infections can cause severe pain, fevers and abscess. Infections. Viral infections such as mumps, flu and others can cause swelling of the salivary glands. Swelling occurs in parotid glands on both sides of the face, giving the appearance of 'hamster cheeks'. Salivary gland swelling is commonly associated with mumps, occurring in about 30% to 40% of mumps infections.