Can polymorphic sunburn worsen?

Polymorphic sun rash may also show deterioration. Polymorphic sun rash refers to a skin change caused by long-term sunlight exposure. However, the changes are more diverse and may be characterized by erythema, papules, blisters, erosions, exudates and many other changes. If this condition is not treated in time, local tissue long-term non-healing or by external stimulation, it may show deterioration, easy to cause local obvious ulceration, transformation into squamous cell carcinoma or basal-like cell carcinoma. When showing long-term non-healing skin lesions, it is necessary to pay special attention to prevent malignant changes, which will cause obvious effects on human health.