A colloquial name for acne vulgaris, it is an inflammation of the hair follicles that occurs on the face of both sexes after puberty, especially on the cheeks and forehead. It can also occur on the neck, chest, and upper back, and can appear in people approaching the age of 40, and in women, it can worsen just before menstruation. Sebum and keratin become clogged in the hair follicles, forming yellowish-white lumps (white blisters), sometimes with black discoloration at the top (black blisters), which become cheese-like when pressed. When bacteria are added to this, lipids break down to produce free unsaturated fatty acids, causing inflammation in the hair follicles and the surrounding area, resulting in red, raised bumps (papules). If it further suppurates, it turns yellow (pustules), and after healing, small crater-like marks (scars) remain. Usually, these are mixed together. The causes include genetic predisposition and the action of male hormones, which causes the sebaceous glands to enlarge and produce excessive lipids, combined with the action of bacteria, especially acne bacteria and staphylococcus aureus. Treatment involves (1) washing the face with soap at least three times a day. Rubbing with a facial sponge is more effective. (2) avoiding oily cosmetics such as creams, milky lotions, and foundations, and packs, and using toners such as astringents and lotions. (3) avoiding stimulants such as chocolate and coffee, sugary sweets, and excessive eating of fatty foods, and instead consuming vegetables, fish, and red meat. (4) getting enough sleep and avoiding mental stress. (5) choosing a hairstyle that will prevent irritation from contact with the hair. (6) expressing the blisters, applying Kummerfeld's solution or antibiotic ointment, and systemic therapy with small amounts of antibiotics, vitamins B2 and B6 , and hormones are used. [Kimiko Saito] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
尋常性痤瘡(ざそう)の俗称で、思春期以後の男女の顔、とくに頬(ほお)と額に好発する毛包(毛嚢(もうのう))の炎症である。首や胸、上背部にも生じたり、40歳近くなってみられるものや、女性では月経直前に悪化するものもある。毛包内に皮脂と角質が詰まり黄白色の塊ができ(白色面疱(めんぽう))、ときにその頂点が黒く変色し(黒色面疱)、押すとチーズ状のものが出る。これに細菌の作用が加わると、脂質が分解して遊離不飽和脂肪酸を生じ、毛包およびその周囲に炎症がおこり赤く隆起する(丘疹(きゅうしん))。さらに化膿(かのう)すると黄色を呈し(膿疱)、治ったあとに噴火口状の小さなあと(瘢痕(はんこん))が残る。通常これらのものが混在している。原因としては、遺伝的な素質と男性ホルモンの作用で脂腺(しせん)が肥大、脂質分泌過多がおこり、細菌とくに痤瘡桿菌(かんきん)やブドウ球菌の作用が加わることがあげられる。 治療としては、〔1〕せっけんによる洗顔を励行し、少なくとも1日3回以上行う。洗顔用スポンジでこするとより効果的である。〔2〕クリーム、乳液、ファンデーションなどの油性化粧品やパックを避け、アストリンゼント・ローションなどの化粧水を使用する。〔3〕食物はチョコレートやコーヒーなどの刺激物、糖分の多い菓子類、脂肪の過食を避け、野菜類や魚肉類、赤身の肉を摂取する。〔4〕十分な睡眠をとり精神的なストレスを回避する。〔5〕頭髪の接触による刺激を避けるよう髪形をくふうする。〔6〕面疱圧出、クンメルフェルド液や抗生物質軟膏(なんこう)の外用と、少量の抗生物質、ビタミンB2、B6やホルモン剤による全身療法が行われる。 [齋藤公子] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
The deliberate disruption of parliamentary procee...
...The original species is common in Europe, and ...
…It is a new spatial science that links and syste...
...A general term for parasitic wasps belonging t...
A processed food made from small fish, shrimp, sh...
Politician. Born in Okayama Prefecture. Dropped o...
A flower with a gamopetalous corolla. The calyx i...
Year of death: Tenpyo Shoho 9.7? (757) Year of bir...
The Nguyen dynasty, whose capital was in Hue in ce...
A perennial aquatic plant of the Menyanthaceae fa...
...A demon that appears in the Old Testament apoc...
A general term for the style of calligraphy writte...
…[Rokuya Imaseki]. . … *Some of the terminology t...
Generally, this refers to a reaction to introduce...
... In the early 20th century, skirts that covere...