What is a common sign of an allergic reaction to eyelash extension adhesive?

A common sign of an allergic reaction to eyelash extension adhesive is redness and swelling around the eye. This reaction occurs due to the body's immune response to certain ingredients in the adhesive, particularly formaldehyde or other chemical compounds. When a person is allergic, the body identifies these substances as harmful, leading to inflammation and reactive symptoms in the sensitive skin around the eyes.

Redness indicates increased blood flow to the area, a common response to allergens, while swelling, or edema, occurs as the tissues become inflamed and retain fluid. These symptoms can arise shortly after application or develop over time with repeated exposure. Recognizing these signs is critical for practitioners to ensure the client's well-being and to prevent further complications.

In contrast, symptoms like itching and tearing, while also potential indicators of irritation, may not specifically signify an allergic reaction related to the adhesive. Dryness and flaking or discoloration of the lid can stem from various causes, including environmental factors or skin conditions, rather than directly relating to an allergic response from the adhesive itself.