my son is two years old and for the past three months his {left hand} finger has become swollen and his nail has become disfigured, and now the same symptons are begining on his thumb on the other hand!!   doctors are not sure what it is just giving him antibiotics, we are now waiting to see a skin specialist. any ideas???

Optional Information:
Female, Age: 26, United Kingdom

Already Tried:
five types of antibioctics, cream, xrays and pricking his finger with pin!!