Do not use Ecomune Eye Drop if the seal is broken prior to your first use Before using it ensure that you wash your hands and shake the bottle well If you wear contact lenses remove them and wait at least 15 minutes before reinserting them It may take several weeks before you observe any improvement in your dry eyes so continue taking it as directed The most common side effects of this medication include blurred vision and a burning sensation in the eyes If your vision becomes blurry or you experience any changes in your eyesight refrain from driving until your vision clears up This side effect is typically temporary but if it becomes bothersome inform your doctor It is unlikely that other medications you take orally or via injection will interfere with the effectiveness of this eye drop However it is advisable to consult your doctor if you have previously used a similar medication and had an allergic reaction If you are pregnant attempting to conceive or nursing do not use this medication