This indicates that sound is escaping from your ear and is picked up by the hearing aid's microphone. Since every ear is different, there is no specific time when an earmold should be replaced. Although on average, one would expect to replace their earmolds about every 12-24 months.
Custom earplugs can protect the musician's or listener's ears from long exposure to loud music, while still allowing you to hear the sound and frequency of the music at a safe and comfortable level. Interchangeable filters are available for varying levels of sound attenuation to suit individual needs.
The biggest risk for ear molding is skin breakdown. This is usually a very small ulceration and typically heals overnight once ear molding is removed. Occasionally, a baby can have mild skin irritation or allergy to the adhesive. Other uncommon risks include infection, bleeding, or bruising.
While earplugs are generally safe, there are a few possible side effects that can occur with nighttime use, especially if you're someone who uses them daily. The risks of sleeping with earplugs might include: Earwax and ear infections. One possible risk of sleeping in earplugs is a buildup of earwax.