Otinova® can be used “intermittently” i.e. during periods of increased risk of developing ear canal inflammation, such as swimming/aquatic sports holidays. If you do not feel significantly better after 1-3 days of treatment you should contact your doctor. Salt precipitation in, and severe dehydration of, the ear canal may occur with overdosing and/or long-term use. Do not use Otinova® for a continuous period of more than 7 days.