What are the possible causes of swelling on the right side of the face without pain?

Generally, right facial swelling without pain may be caused by excessive salt intake, menstrual cycle changes, improper sleeping posture, allergic reactions, chronic nephritis, or other reasons. If discomfort occurs, please seek medical attention promptly. Detailed analysis is as follows:

1. Excessive Salt Intake

Excessive salt intake leads to elevated sodium ion concentration in the body. To maintain osmotic pressure balance, body fluids transfer to the extracellular space, causing localized edema. It is recommended to reduce salt consumption in daily life and drink more water to promote sodium excretion.

2. Menstrual Cycle Changes

Fluctuations in estrogen and progesterone levels during the menstrual cycle can affect water and salt metabolism in the body, potentially causing fluid retention. Facial edema is particularly noticeable in the late luteal phase to premenstrual period. It is recommended to maintain good lifestyle habits, avoid overly salty foods, and engage in appropriate exercise to promote blood circulation.

3. Improper Sleeping Posture

An improper sleeping posture during the night, such as consistently sleeping on one side, may hinder facial blood circulation on that side, leading to fluid and metabolic product accumulation, resulting in non-painful swelling. Adjusting sleeping posture and avoiding prolonged lateral sleeping is recommended.

4. Allergic Reaction

Physical activity, stress, or other factors may trigger or worsen allergic reactions, increasing facial vascular permeability and causing local exudation, leading to swelling. Symptoms such as itching and rashes may also appear. Treatment should follow medical advice using medications like Loratadine Tablets, Ebastine Tablets, or Dexamethasone Acetate Injection.

5. Chronic Nephritis

Chronic nephritis is mainly associated with infections, environmental factors, and medications. It may impair kidney function, reducing the kidneys' ability to excrete water and sodium, leading to systemic edema, including facial swelling. It may also be accompanied by symptoms such as proteinuria and hypertension. Treatment should follow medical advice using medications such as Sodium Bicarbonate Tablets, Nitrofurantoin Enteric-coated Tablets, and Levofloxacin Tablets.

Maintaining facial cleanliness using gentle facial cleansers and avoiding excessive friction or squeezing of the swollen area is recommended in daily life.