Unverified85% confidenceFactTime unknown
药膏涂抹遵循'指尖单位(FTU)'原则：从成人食指尖到第一指节的量约0.5g，可覆盖两个成人手掌面积；激素类精准控量避免过量，保湿类则需大量涂抹
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85%
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Long-term
Relevance
-
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Unverified激素外用药涂抹应遵循FTU指尖单位原则，成人一个指尖单位（约0.5g）覆盖两个手掌面积，过量涂抹增加吸收和副作用风险92% similarUnverified选购前需实测指围：单指套要选内径比手指周长小1-2mm的规格才能固定不脱落，过松易被吐出反成误吞风险，过紧则勒出压痕影响血液循环73% similarUnverified全指设计（含拇指孔）覆盖手背，防晒面积比半指款更完整，但手指灵活操作（如触屏、精细操作）会受到一定限制。72% similarUnverified主要覆盖掌背区域，对手指各指节的包裹性有限，需要全指节均匀热敷（如类风湿手指关节炎）的用户应考虑石蜡浴或分指式电热手套71% similarUnverified指环内圈直径应容纳食指第二关节（约成人手指宽度18-22mm），过小无法伸入、过大握持防脱效果差69% similar
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