The elbows on the hard skin is considered a common clinical neurodermatitis, may be related to local friction stimulation, after a long time will appear skin hypertrophy, flaking, there may also be pigmentation. The main thing is to avoid local friction stimulation, do not pick and scratch the skin, treatment can be applied topical hormonal cream, such as fluticasone propionate cream, which has a strong anti-inflammatory, anti-allergic, anti-itch effect, generally after the improvement and then intermittent external coating can be; can also be applied topical non-hormonal cream, such as butyl hydroxy acid cream, ethoxybenzylamine ointment, etc.; usually pay attention to the local skin moisturizing. You can apply topical urea vitamin E cream, moisturizing emulsion, etc.