YSLAB

The goal of this interventional clinical trial is to test the safety and efficacy of two medical devices in subjects aged from 3 months old for the treatment of colds, rhinitis, sinusitis, and other upper respiratory infections/conditions for 7 days.

The goal of this clinical trial is to test the safety and efficacy of a medical device in subjects with cerumen in excess. The main questions it aims to answer are:
* Does the medical device induce skin irritation in the ear canal?
* Does the medical device reduce obstruction of ear canal induced by excessive cerumen?
Participants will use the device in each ear, once a day, every 3 days at home. Researchers will compare the medical device group to a control group who will not use the medical device.

The main objective is to compare the effect of nasal washing on nasal discharge and nasal congestion during treatment after 3 days of use.