My right hand thumb has some allergy problem almost 10 months now. Its on the top side under the nail side position. I used many skin creams & it gets cured after so much of using ointments but when I stop or use less ointment then it comes back after few days of time. I'm very much disturbed with this problem. I'm currently out of india & fed up with this allergy. Some times it gets so hard & skin gets cracks on it. Please suggest me some permanent remedy. I took oral anti allergic Cetrizine also but when I stop medicine it come back.