A pharmaceutical dermatological composition based on Pentoxifylline, to be applied on the skin in the form of a cream, gel, unguent, solution, in an emulsion, in liposomes and in microcapsules, being selective for the vascular disorders of rosacea and disorders with photosensitivity, reducing the blood vessels and the reactions of reddening of the skin, characterised in that said composition consists of: from 1 % to 99% of Pentoxifylline, from 0.1 % to 80% of base cream and from 0.1% to 75% of liposomes.酒さのような血管障害及び光線過敏性障害に関して選択的であり、血管拡張及び皮膚の発赤反応を低減する、クリーム、ゲル、軟膏、溶液、乳剤、リポソーム及びマイクロカプセルの形態で局所に適用するためのペントキシフィリンに基づく皮膚用医薬組成物。