Suggest Treatment For Dermitis Affecting Tips Of Fingers And Under The Nails

Hello I have a form of dermitis that has affected the tips of my fingers and under my nails on one hand in particular Is it possible that I have become allergic to hair as I am a barber and have had this now for over a year It is not getting better bit seems to have a cycle Now my left hand is becoming affected Worried I may have to leave my job. Linda