Summer dermatitis

Summer dermatitis is a seasonal inflammatory skin disease caused by hot weather, often occurring from June to August. This disease is more common in adults, with symmetrical skin lesions on the trunk and limbs, especially on both shins. It manifests as large patches of bright red erythema, with pinpoint to millet-sized papules and papulovesicles on the erythematous base. It is accompanied by severe itching, and scratching can lead to excoriations and blood scabs, eventually causing the skin to become rough and thickened.