The following symptoms and complaints may indicate polymorphous light dermatosis:
Initially, itching occurs, followed by patchy redness of the skin. Thereafter, the following efflorescences (skin changes; skin bloom) may occur:
- Bullae (blisters)
- Papules (vesicles)
- Papulo-vesicle – a mixture of papule and vesicle (vesicle) represents.
- Plaques (areal or plate-like substance proliferation of the skin).
Predilection sites (body regions where the disease occurs preferentially) after intense sun exposure are:
- Décolleté
- Arms, stretch side
- Back of the hand
- Legs
- Torso
- Face
- Very rarely scatter reactions occur
Symptoms occur delayed after hours to days, so not directly at exposure. If sun exposure is avoided, the efflorescences disappear within a few days without consequences.
The same skin lesions always persist in an affected person.
After repeated exposure to light (summer), the skin becomes accustomed to the radiation doses.