`Combigan Drops 5ml` should be used only in the affected eye, precisely as advised by your doctor regarding dose and duration. Always wash your hands before using this medicine. Carefully read the label for directions before each use. It is crucial not to skip any doses and to complete the full course of treatment, even if you start to feel better.

The most common side effects of `Combigan Drops 5ml` include temporary burning, irritation, itching, or redness at the application site, along with sleepiness and decreased alertness. If these side effects persist or become bothersome, inform your doctor. In case of accidental contact with your nose or mouth, rinse immediately with plenty of water. Since `Combigan Drops 5ml` may cause temporary blurring of vision, avoid driving or operating heavy machinery immediately after use until your vision has cleared.