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1. www.webmd.com › asthma › peak-flow-meterUsing a Peak Flow Meter to Manage Asthma - WebMD

   www.webmd.com › asthma › peak-flow-meter

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   2024年2月20日 · A peak flow meter is simple to use for tracking your asthma. Here's what you do: Stand up or sit up straight. Make sure the indicator is at the bottom of the meter (zero). Take a deep breath in ...

2. www.webmd.com › allergies › postnasal-dripWhat Is Postnasal Drip: Sore Throat From Sinus Drainage - WebMD

   www.webmd.com › allergies › postnasal-drip

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   2024年2月26日 · Learn about postnasal drip, a common condition that causes sore throat, sinus drainage, and runny nose. Find out the causes, symptoms, and treatments from WebMD.

3. www.webmd.com › first-aid › nosebleeds-causes-and-treatmentsHow To Stop & Prevent Nosebleeds

   www.webmd.com › first-aid › nosebleeds-causes-and-treatments

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   2021年10月19日 · Pinch your nostrils closed. Use your thumb and index finger to hold your nostrils closed for 5 to 10 minutes while you breathe through your mouth. This puts pressure on the part of your nose that ...

4. www.webmd.com › oral-health › tooth-enamel-erosion-restorationTooth Enamel Erosion and Restoration - WebMD

   www.webmd.com › oral-health › tooth-enamel-erosion-restoration

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   2023年4月4日 · The edges of teeth become more rough, irregular, and jagged as enamel erodes. Smooth, shiny surfaces on the teeth, a sign of mineral loss. Severe, painful sensitivity. In later stages of enamel ...