My skin is getting harder at my finger tips. It pains when i touch , what might be the reason for this? I am feeling this from past four days had no other symptoms before this and it was normal.i am not diabetic as well.what to do how do I cure? Images attached are of two different fingers and i have pain when i.touch in that particular small area rest areas surrounding it is normal have no pain nor skin hardness. Please help, don't ask me for paid consultation. Let me know the reason why is this happening.