What causes sudden swelling of the upper lip?

Generally, sudden swelling of the upper lip may be related to factors such as dry climate, malnutrition, allergies, trauma, or chronic cheilitis. If discomfort occurs, it is recommended to seek medical attention promptly. Detailed analysis is as follows:

1. Dry Climate

A dry climate may cause dehydration of the lips, prompting unconscious lip-licking behavior, which can lead to cracking and possibly swelling of the upper lip. Drinking adequate amounts of water and applying lip balm may help alleviate these symptoms.

2. Trauma

If the upper lip suffers from impact or biting injuries, swelling may occur. Appropriate warm compresses for 5–10 minutes may help improve blood circulation and relieve symptoms.

3. Malnutrition

Deficiencies in nutrients such as B vitamins, iron, and zinc may lead to swelling of the upper lip. Increasing consumption of foods rich in these nutrients, such as spinach, carrots, and pork liver, is recommended.

4. Allergy

Consumption of allergenic foods such as seafood or mango may trigger allergic reactions, causing sudden swelling and pain in the upper lip. Medications such as cetirizine hydrochloride tablets, loratadine tablets, or cetirizine oral solution may be used under medical guidance to alleviate symptoms.

5. Chronic Cheilitis

Poor oral hygiene over a prolonged period may lead to cheilitis, which may cause sudden swelling of the upper lip, possibly accompanied by symptoms such as dryness and peeling. It is recommended to consult a doctor and use medications such as metronidazole tablets, roxithromycin tablets, or loratadine tablets to relieve symptoms.

Maintaining healthy lifestyle habits in daily life is important. Avoid consuming spicy or irritating foods such as pepper, chili peppers, and garlic, as they may hinder recovery.