With regular applications along the lash line of the upper eyelid, Careprost (Bimatoprost Ophthalmic Solution) gradually encourages growth of longer, thicker and darker eyelashes. Careprost can’t be applied to the lower eyelid. For full results, you must use careprost eye drop daily for at least 4 weeks.
Potential side effects of Careprost include:
Redness of the thin tissue over the white part of the eye (conjunctiva)
Itchy, red eyes
Darkened brown pigmentation in the colored part of the eye (iris)
Hair growth around the eyes if the medication regularly runs or drips off the eyelids
Although darkened eyelids might fade when the medication is stopped, any changes in iris color are likely to be permanent.
Lots of above side effects will disappear after a week using, if your situation is getting worse, please stop use it and call your doctor.