Introduction
They may be allergic (immunological) or irritant (direct damage to the skin). The face — and the eyelids in particular — is often affected because the skin there is thin and products are applied repeatedly.
Symptoms
- Redness, inflamed patches
- Itching, burning sensations
- Swelling of the eyelids, lips or face
- Small blisters, weeping, crusts
- Dryness, scaling
- Gradual worsening despite occasionally stopping the product
Causes
- Allergens
- fragrances, preservatives, dyes
- “Natural” products (essential oils, plant extracts)
- Make-up
- foundation, mascara, nail varnish
- Hair products
- hair dyes, shampoos, hairsprays
- Skin care
- creams, serums, sunscreens
- Cumulative effect of several products used at the same time
Diagnosis
- Detailed history (full list of products used)
- Analysis of the sites affected (eyelids, face, hands, neck)
- Skin examination
- Patch tests with cosmetic series
- Identification of the ingredient responsible (INCI)
Treatments
- Immediate withdrawal of the product or products responsible
- Topical corticosteroids in the inflammatory phase
- Repairing emollients
- Antihistamines if itching is present
- Replacement with validated hypoallergenic products
Management
Identify the allergenic ingredient precisely
Avoid chronic recurrences
Make your cosmetic routine safe
Recommend alternatives suited to your skin