Try this first: the 5-minute nightly routine
  1. Wipe the hearing aid with a dry, soft cloth.
  2. Brush microphone ports and openings with the provided brush.
  3. Check for wax (wax guard/receiver opening). Replace the wax guard if blocked.
  4. Dry + store: open the battery door or place devices in the charger, then store in a dry case.
  5. Quick sound check the next morning before you leave the house.

Most hearing-aid problems come from two very normal things: moisture and earwax. A simple routine keeps sound clearer, reduces repairs, and helps your devices last longer.

Daily care

Morning

  • Listen for changes: muffled sound, weaker volume, or intermittent audio can suggest wax or moisture.
  • Check the fit: a loose dome or poorly seated earmold can cause feedback (whistling).

Evening

  • Clean gently (dry cloth + brush). Avoid sharp objects.
  • Store dry. If you live in a humid area or sweat heavily, consider a drying case.
  • Charging: wipe charging contacts occasionally and keep the charger in a clean, stable spot.

Weekly (or as needed)

  • Replace wax guards if your model uses them (or if sound gets muffled).
  • Inspect domes/tubing for cracks, stiffness, or discoloration.
  • Clean earmolds (if applicable) following your clinic’s instructions.
  • Check microphones for lint or debris.

Moisture management

Moisture can come from humidity, sweat, rain, or even leaving devices in a steamy bathroom. Helpful habits:

  • Remove devices before showering or swimming (unless you have a specific waterproof rating and guidance).
  • After exercise, wipe devices and let them dry in a case.
  • Avoid storing devices in hot cars or direct sun.

Common mistakes

Avoid these (they cause most “mystery” problems)
  • Water + electronics: don’t rinse hearing aids under the faucet.
  • Alcohol or household cleaners: they can damage plastics and microphone covers.
  • Compressed air or hair dryers: they can push debris deeper or damage components.
  • Sharp tools: pins and toothpicks can tear microphone screens.

When to call your clinic

Get support if you notice:

  • Persistent muffled sound that doesn’t improve after cleaning/wax guard replacement
  • New pain, itching, skin breakdown, or sores where the device sits
  • Sudden feedback (whistling) that wasn’t present before
  • Charging issues or a battery that drains unusually fast

Quick FAQ

How often should I change wax guards?

There’s no single schedule — some people need frequent changes, others rarely. If sound becomes muffled, changing the wax guard is a good first step.

Why do my hearing aids whistle sometimes?

Common causes include a loose fit, earwax buildup, or a dome/earmold that isn’t sealing as well as it used to. A quick cleaning and fit check often helps.

Can I use my hearing aids during exercise?

Many people do. If sweat is an issue, wipe devices afterward and consider a drying case. If you notice repeated moisture problems, ask your clinic about sweat protection options.

Bottom line

A little daily care prevents most big problems. If sound changes suddenly or your ears become irritated, get help early — small fixes are easier than major repairs.

Next steps

Make the nightly routine automatic. Consistency beats perfection. If you’re troubleshooting often, bring your devices to your clinic — many issues are quick fixes.

Was this page helpful?

UCSF EARS provides educational information and is not a substitute for medical care. If you develop ear pain, drainage, fever, or sudden hearing changes, seek medical evaluation.