Swelling of the eyes and face may be caused by allergic reactions, but it may also be caused by nephritic edema, heart disease, etc. You should consult a doctor to find out the cause of the problem. 1. Allergic reaction: If allergy occurs when applying a wide variety of cosmetics, it can lead to swelling of the face and eyes. In addition to swelling of the face and eyes, such patients usually have localized redness of the skin color or even a rash. 2. Nephritic edema: If the swelling of the face and eyes often occurs in the morning, the first thing to consider is whether the patient has nephritic edema. Patients with nephritis have lower glomerular filtration rate, which makes it difficult for water to be discharged and accumulate in the body, thus leading to face and eye edema. 3. Heart disease: Cardiac insufficiency and severe heart failure can also lead to edema of the face and eyes. This is because heart failure affects the amount of blood returning to the heart, causing an increase in venous pressure, which ultimately leads to swelling in the tissue spaces. If the swelling of the eyes and face cannot be relieved by rest, or if it is accompanied by other discomforts, it is recommended to consult a doctor for examination, to clarify the cause of the condition, and to follow the doctor’s instructions for appropriate treatment.