The swelling under the ear may be related to acute parotitis, mosquito bites, allergic dermatitis and other reasons.
1. Acute parotitis: Acute inflammation of the parotid gland caused by bacterial infection can lead to parotid gland enlargement and pain, which can be manifested as swelling under the ear when you wake up.
2. Mosquito bites: If a mosquito bites the area below the ear, it can cause the body to develop abnormal immunity, resulting in a localized inflammatory reaction, which can lead to swelling.
3. Allergic dermatitis: If the local contact with dust mites and other allergens, can cause local allergic reactions, appearing after waking up and swollen under the ears.
It is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor for standardized treatment, so as not to delay the condition.