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夏秋季,有些病人在用过某些药物后,再接受日光照射,即引起强烈的皮肤反应,轻者表现为皮肤充血水肿、皮疹水疱、色素沉着、局部疼痛发麻、瘙痒;重者皮肤溃破流水、剥脱或脱皮。这就是药物光敏性皮炎。日光与药物的这种作用称为光致敏作用。可引起光感性皮炎的常用药物主要有。①萘啶酸。在用药一月至数月,或在治疗后数周均可使皮肤出疹。②噻嗪类。如克尿噻、双氢克尿噻、苄氟噻嗪、吩噻嗪类。服用后,经短暂的日光照射即可产
In summer and autumn, some patients after using certain drugs, and then receive sunlight, that cause a strong skin reaction, the lesser manifested as skin congestion and edema, rash blisters, pigmentation, local pain numbness, itching; severe skin ulceration Break the water, peeling or peeling. This is the drug photosensitive dermatitis. This effect of sunlight and medicine is called photo-sensitization. Commonly used drugs can cause light-sensitive dermatitis are mainly. ① nalidixic acid. Skin rash can occur from January to several months of treatment or weeks after treatment. ② thiazides. Such as urinary thiazide, hydrochlorothiazide, bendroflumethiazide, phenothiazines. After taking it, short-term sunlight can be produced