The sale of hair products has expanded enormously in the last decade. Shampoos constitue the bulk of these products, and shampooing is almost a daily rite for many persons. Especially medicated shampoos & topical steroids were using due to dandruff or seborrheic dermatitis.

Twenty patients with dandurff were treated for 3 weeks by 2.5% selenium sulfide shampoo, 0.15% zine pyrithione shampoo, 2% ketoconazole shampoo, 0.1% hyprocortisone butyrate lotion. All of 4 groups, there corneocyte & nucleocyte counts were decresed remarkably after treatment. And then, we thought that it may be the more effective treatment with low side effect, if adequate combination of these medicated shampoos and topical steroid were used in dandruff and sebrorrheic dermatitis patients.

In 1967, Mehregan et al described a new and distinct clinicopathologic entily that called reactive pergorating collagenosis. This rare disease is classfied with a group of disorders that involve the transepithelial elimination of hestochemically altered dermal tissue. In reactive perforating collagenosis, minor trauma such as an insect bite, scratch, or pliodrbaceous infection alters the collagen fibers in the dermis. We report here a case of reactive perforating collagenosis in a 54-year-old female patient without any associated disseases of specific family history.

Eccrine hidrocystoma is small, translucent, smooth, shiny and often bluish colored, domeshaped cystic structure that occurs most often in a periobital area. The histologic finding of an intradermal cyst with a thin wall composed of two layers of eosinophilic-staining cuboidal cells in dilated eccrine glandular & ductal sturcture.

We present a case of multiple eccrine hidrocystoma occuring on the face, especially both eyelids & cheeks in a 70-year-old female patient.

Sudoriparous angioma or eccrine angiomatous hamartoma is an unusual form of angioma with pain and hyperhidrosis over the lesion in clinically, and a hamartoma in which histologically, eccrine sweat apparatus and vascular elements is present in the same lesion. We present a case of typical sudoriparous angioma occuring on the left ankle area in a 17-year-old female patient.