Unverified75% confidenceDecision RuleTime unknown
开封后精油持续挥发，未用完的驱蚊贴应密封回原包装或存入密封袋，敞口存放1-2周即基本失效，购买大包装前需评估季节内能否用完
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75%
Confidence
Long-term
Relevance
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Unverified无添加防腐剂的浓缩膏开封后需冷藏，保质期通常缩短至开封后1-3个月；选购时注意生产日期，膏体质地应黏稠拉丝、无分层析水、无发酵酸味83% similarUnverified膏方需冷藏保存，取用时忌沾水沾油，否则易发霉变质；一料膏方通常需服用一到两个月，储存条件不便者可选分装小包装82% similarUnverified石膏/香薰石扩香持续时间短（1-3天需补滴精油）但无液体泼洒风险，适合车载和抽屉；藤条液体款持续2-3个月，适合固定桌面摆放81% similarUnverified多数院内制剂为多剂量瓶装，开封后需冷藏且有效期通常仅2-4周，保存不当易污染或失效，对储存条件要求高于商业化单支装产品81% similarUnverified草本浴包属易吸潮霉变品类，购买时查看生产日期，天然草本类保质期通常18-24个月，散装无独立密封包装的开封后建议3个月内用完，受潮结块或有霉味立即弃用81% similar
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