Article in English: As of September 2013, bimatoprost remained the only FDA approved drug prescribed to treat an abnormal lack of eyelashes, especially if caused by hypotrichosis.  The medication is applied along the upper lash line, eventually stimulating longer, thicker, and darker lashes, but you should not apply it to the lower lashes. Usually, doctors instruct you to take the medication daily for two months or more. Possible side effects include itchy or red eyes, dry eyes, darkened eyelids, darkened brown pigmentation in the iris, hair growth around the eyes if the medication continually runs off the eyelids and onto the surrounding skin. There are a variety of health conditions and disorders that could be responsible for your loss of eyelashes. If you have one of these conditions, the only real way to grow eyelashes long-term is to treat the underlying condition.  Eye infections, hypothyroidism, autoimmune diseases, eyelid inflammation, and trichotillomania are all conditions that could be to blame. Doctors may recommend a special cleaning routine for eyelid inflammation and infections. An infection may also warrant the use of antibiotics. Hypothyroidism needs to be treated with thyroid replacement drugs. Trichotillomania is a psychological condition that causes you to pull your eyelashes out. You might be treated with cognitive-behavioral therapy and certain mood-stabilizing drugs. Autoimmune diseases are often treated with various immuno-suppressants.

Summary in Chinese:
让医生开具比马前列素。 问问医生，自己是否有什么引起睫毛脱落的潜在疾病。