It would be best if you continued to use your Careprost eye drops daily for as long as your physician prescribed, which may be for some months or years, as they will help control normal eye stress while using Careprost eye drops. Careprost eye drop is an over the counter drops used to treat Hypotrichosis. It is a medical condition that prevents the growth of eyelashes. With using this medication as informed, you will notice longer, more durable, thicker, and healthier lashes. These lashes will add the charm you crave, all while being free of Hypotrichosis.