Objectives : This clinical research was conducted to test Patients with Tinea Pedis by using functional soap Gaia 1400, containing medicinal herbs Methods : Total 24 patients who visited Oriental Medical Ophthalmology & Otolaryngology & Dermatology of Dongguk Ilsan Hospital from June 17th, 2008 to November 11th, 2008. They used functional soap daily during 8 weeks. We Observed change of erythema, scaling, vesicle, pustule, exudate, crust and pruritus after 4weeks and 8 weeks. Also Clinical evaluation I, II were used to evaluate the effects of Gaia 1400. Results : 1. There were no significant differences on sex, age and onset. 2. Statistically. After treatment(4,8weekes) Tinea Pedis symptoms score showed significant effect on Tinea Pedis. And the score of using Gala 1400 after 8 weeks is lower than 4 weeks. 3. After 8weeks of treatment, Gaia 1400 showed meaningful effect on Clinical global evaluation I, II. 4. Tinea Pedis Exacerbated in a case after using Gaia 1400 and in the 4 cases Skin dryness Incerased. Conclusion : Considering the above results, we can speculate that functional soap Gaia 1400, containing medicinal herb has some therapeutical effects in mitigating the symptoms of Tenia Pedis.