I have bumps blister like on my middle right finger i get them every year they hurt and itch?

Blisters?: There are very few things which are rather or certainly descriptive of actual skin diseases, but yours is certainly one of those nearly Pathognomonic big signs. But the Pathognomonic means they indicate a certain disease almost in all cases. Your rash sounds like one but this is not the place for diagnoses -- it is more proper to visit your dermatologist.