Diagnosis

• Appearance of localized or diffuse redness , often on the cheeks, nose, forehead or around the eyes.
• Increased sensitivity to temperature changes or sun exposure.

• A sensation of heat or burning on certain areas of the face or body, particularly after applying skincare products or after exposure to irritants.
• Slight or more pronounced tingling , often after cleansing the skin or using unsuitable cosmetic products.

• The skin may be very dry intermittently, with sensations of tightness.
• Desquamation or rough skin , sometimes accompanied by small pieces of dead skin.

• Itching (itching), often caused by skin that reacts badly to external factors.
• Irritations due to overly aggressive skincare products or triggering factors such as heat or humidity.

• Immediate or delayed reactions after the application of certain irritating skincare products: redness , swelling, skin rashes .
• Reactive skin exhibits irritation in response to substances such as perfumes, preservatives, or certain aggressive active ingredients.

• Increased sensitivity to cold and heat, with symptoms such as redness or tightness , especially in winter (skin that reddens and dehydrates easily).
• Itching sensations due to wind or temperature variations.

• Stress can worsen skin reactivity, leading to flare-ups of redness , tightness , and irritation .

• Peeling skin.
• Dull or rough appearance to the touch.
• Lack of flexibility.

• Tightness , especially after cleaning or exposure to cold.
• Sensation of peeling or cracking skin .

• Itching, an urge to scratch, often exacerbated by cold or heat.
• Tingling or burning sensation.

• Appearance of localized redness , especially on the face, hands and legs.
• Skin that becomes more reactive to external aggressions (wind, cold, pollution).

• Skin that becomes red, especially on the cheeks, hands, elbow creases and knees.
• Local inflammation , intensified during flare-ups.

• Severe itching , often worse at night.
• The need to scratch can worsen the lesions and lead to sores or scabs.

• Skin that peels, flakes , or has dry patches.
• Tightness and a feeling of rough skin.

• Hyperkeratosis : thickened skin, especially in areas where itching is frequent.
• The affected areas may become scaly or rougher over time.

• Red or scaly patches that may ooze or form crusts.
• The lesions can be localized or generalized, and evolve according to the triggers (stress, heat, cold, irritants).

• Atopic skin is particularly fragile: its skin barrier allows external aggressions to pass through more easily. It reacts more strongly to unsuitable cosmetics, perfumes, pollution or even temperature changes.

• Symptoms can vary from person to person, ranging from mild forms ( redness and dryness ) to severe forms (oozing patches, skin infection, extremely rough skin).

The most frequent sign is the appearance of well-defined red patches , often thickened to the touch (raised patches).

The plaques are often covered with whitish or silvery scales , more or less visible depending on the area.

The skin may be very dry . In some areas, it may crack and sometimes bleed , especially if scratched or rubbed.

The sensations experienced vary . Some people describe mainly itching , others burning , sensitivity or pain on the patches.

Psoriasis is often recurrent. Plaques may appear, intensify , and then subside .

The classic locations are: elbows, knees, scalp, lower back .

• Persistent or intermittent itching of the scalp, often due to irritation or excessive dryness.
• The sensation of itching may be more intense after using certain irritating hair products or when washing hair.

• Appearance of localized redness on certain areas of the scalp, particularly around the hair roots.
• The skin may be more inflamed and reactive to pressure or touch.

• The scalp can become sensitive to the simple touch of the hair, to brushing or even during styling.
• Sensation of pain or discomfort when massaging the scalp.

• The scalp may become dry, with areas that flake and give the appearance of dandruff.
• Dandruff can be thin, dry, and sometimes accompanied by itching or irritation.

• The scalp may be more prone to dandruff, often accompanied by dry or oily scabs.
• Scabs can form as a result of irritation, fungal infection, or seborrheic dermatitis.

• A feeling of tightness in the scalp, especially after washing or in cases of excessive humidity or heat.
• The scalp, which appears stiffer, is prone to pulling.