PURPOSE: A composition containing tranexamic acid is provided to safely treat atopic dermatitis.CONSTITUTION: A composition for treating atopic dermatitis contains 0.0001-30 wt% of tranexamic acid as an active ingredient. A therapeutic composition with antibacterial effect against Staphylococcus aureus contains tranexamic acid as an active ingredient. A composition for treating dermatitis, which improves the secretion of Th1 cytokine in comparison with the secretion of Th2 cytokine contains tranexamic acid as an active ingredient.COPYRIGHT KIPO 2013본 발명은 트라넥사믹산을 함유하는 아토피성 피부염 치료용 조성물에 관한 것으로서, 본 발명에 따른 조성물은 안전하고 아토피성 피부염의 치료에 유용하다.