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Seborrheic dermatitis 是一種常見的皮膚病，影響從嬰兒到成人的所有年齡層。其主要症狀包括脫屑、紅腫、搔癢，常見於頭皮、臉部、胸部、背部、腋下、腹股溝等部位。醫師通常依據皮膚的分布與外觀作出診斷。據信，當皮膚對馬拉色菌產生免疫反應而發炎時，就會出現此狀況。主要治療方式是使用抗真菌藥物，例如在受影響區域塗抹 ketoconazole（酮康唑）。然而，這類藥物有時會引起副作用，故醫師建議僅短期使用 corticosteroid（皮質類固醇）或 calcineurin inhibitor（鈣調神經磷酸酶抑制劑）等抗發炎藥物。市面上也有許多非處方抗真菌洗髮精可用於治療 scalp seborrheic dermatitis，通常建議患者先行使用。若上述方法無效，醫師可能會建議長期使用抗真菌洗髮精，或在頑固的頭皮情況下短期使用 corticosteroid（皮質類固醇）治療。
Seborrheic dermatitis is a common skin condition that affects people of all ages, from babies to adults. Its main symptoms include flaking, redness, and itching, usually appearing on the scalp, face, chest, back, underarms, and groin. Doctors typically diagnose it based on where and how the skin looks. This condition is believed to occur when the skin reacts to a yeast called Malassezia by becoming inflamed. The primary treatment involves using antifungal medications like ketoconazole applied to the affected areas. However, because these medications can sometimes have side effects, doctors recommend using anti-inflammatory treatments like corticosteroids and calcineurin inhibitors only for short periods. There are also many over-the-counter shampoos available for treating scalp seborrheic dermatitis, which patients are often advised to start with. If these don't work, doctors may suggest using antifungal shampoos for a longer duration or short-term corticosteroids for stubborn scalp conditions.

Seborrheic dermatitis (SD) 是一種常見的發炎性皮膚病，通常出現在油腺較多的部位（如頭皮、臉部及皮膚皺褶），呈鱗狀斑塊。主要分為兩種型態：infantile (ISD) 與 adult (ASD)。 嬰兒期的 SD 多在出生後的前三個月出現，症狀較輕，通常在一歲左右自行消退，對嬰兒的影響較小。但父母若看到嬰兒頭皮上有厚厚的油性鱗屑，仍可能感到擔憂。 相較之下，adult (ASD) 常呈慢性或反覆發作，會影響生活品質，臨床表現與異位性皮膚炎、接觸性皮膚炎相似。
Seborrheic dermatitis (SD) is a common inflammatory skin disease presenting with a papulosquamous morphology in areas rich in sebaceous glands, particularly the scalp, face, and body folds. The infantile (ISD) and adult (ASD) variants reflect the condition’s bimodal occurrence. Infants are not usually troubled by seborrheic dermatitis, but it may cause significant parental anxiety, often appearing as firm, greasy scales on the crown and frontal regions of the scalp. It occurs in the first three months of life and is mild,self-limiting, and resolving spontaneously in most cases by the first year of life. ASD, on the other hand, is characterized by a relapsing and remitting pattern of disease and is ranked third behind atopic and contact dermatitis for its potential to impair the quality of life.