治療前: 紅斑性丘疹斑塊伴有中度脫屑.
Before treatment : erythematous papules coalesce into plaques with moderate scaling. Advancing edges with some central clearing.
經抗真菌药物治療後,皮損迅速消退. 紅斑性斑塊及脫屑完全消失, 仍暫留下炎症後的色素加深; 已經沒有痕癢.
After treatment with anti-fungal, the skin lesion has resolved quickly. The erythematous papules and plaques and the scaling have all gone. What’s left is the post-inflammatory hyperpigmentation. It is no more itchy.
Tinea cruris (股癬 / jock itch) is a fungal infection of the groin that requires antifungal treatment. The most effective approach is topical antifungal creams such as terbinafine, clotrimazole, or miconazole, combined with strict hygiene and moisture control. Severe or recurrent cases may need oral antifungal medication.
Treatment Overview
1. First-Line Therapy
- Topical antifungal creams/ointments (apply 1–2 times daily for 2–4 weeks):
- Terbinafine 1% cream – fastest resolution, often within 1–2 weeks.
- Clotrimazole 1% cream – twice daily for 2 weeks.
- Miconazole 2% cream – twice daily for 2 weeks.
- Antifungal powders may help keep the area dry, but creams are more effective.
2. Oral Antifungal Therapy (for severe or resistant cases)
- Terbinafine 250 mg daily for 1 week – highly effective.
- Itraconazole 100 mg daily for 2 weeks – good cure rates.
- Fluconazole 150 mg weekly for 2–4 weeks – alternative option.
Self-Care & Prevention
- Keep groin clean and dry – wash daily, dry thoroughly (hairdryer on cool setting can help).
- Wear loose cotton underwear – avoid tight clothing that traps moisture.
- Change underwear daily – fungi thrive in damp fabric.
- Treat athlete’s foot (tinea pedis) if present – fungus can spread from feet to groin.
- Avoid sharing towels/clothing – reduces risk of transmission.
Risks if Untreated
- Persistent itching, redness, and scaling.
- Spread to thighs, buttocks, or other body areas.
- Secondary bacterial infection.
- Chronic recurrence, especially in athletes or those who sweat heavily.
Key Takeaway
Tinea cruris should be treated promptly with topical antifungals, strict hygiene, and moisture control. Severe or recurrent cases may require oral antifungal medication. Preventive measures—such as treating athlete’s foot, keeping the groin dry, and avoiding tight clothing—are essential to stop recurrence.
股癬（Tinea cruris / jock itch）的治療
股癬是一種由真菌感染引起的腹股溝皮膚病變，需要抗真菌治療。最有效的方法是使用外用抗真菌藥膏，如特比萘芬、克霉唑或咪康唑，並配合嚴格的衛生管理與保持乾爽。嚴重或反覆發作的病例可能需要口服抗真菌藥物。
治療概覽
1. 一線治療
- 外用抗真菌藥膏／藥膏（每日塗抹 1–2 次，持續 2–4 週）：
- 特比萘芬 1% 藥膏 – 效果最快，通常 1–2 週即可改善。
- 克霉唑 1% 藥膏 – 每日兩次，持續 2 週。
- 咪康唑 2% 藥膏 – 每日兩次，持續 2 週。
- 抗真菌粉劑可幫助保持乾爽，但藥膏效果更佳。
2. 口服抗真菌治療（適用於嚴重或耐藥病例）
- 特比萘芬 250 mg 每日一次，持續 1 週 – 效果顯著。
- 伊曲康唑 100 mg 每日一次，持續 2 週 – 治癒率良好。
- 氟康唑 150 mg 每週一次，持續 2–4 週 – 可作為替代方案。
自我護理與預防
- 保持腹股溝清潔乾燥 – 每日清洗並徹底擦乾（可用冷風吹風機輔助）。
- 穿寬鬆棉質內褲 – 避免緊身衣物造成潮濕。
- 每日更換內褲 – 真菌容易在潮濕布料中繁殖。
- 同時治療足癬（香港腳） – 真菌可由足部傳至腹股溝。
- 避免共用毛巾或衣物 – 減少傳染風險。
不治療的風險
- 持續瘙癢、紅斑與脫屑。
- 擴散至大腿、臀部或其他部位。
- 繼發細菌感染。
- 慢性反覆發作，尤其在運動員或大量出汗者。
重點提示
股癬應及時使用外用抗真菌藥物治療，並配合嚴格的衛生與保持乾爽。嚴重或反覆病例可能需要口服抗真菌藥物。預防措施——如治療足癬、保持腹股溝乾燥、避免緊身衣物——對於防止復發至關重要。