I have had these itchy, fluid filled bumps on my fingers for about a year now. They come and go. When I have them, hot water makes them intensely itchy. I also had an allergic reaction to something last week with a rash on my arms, chest and stomach. The rash went away but not before severely exacerbating the bumps on my fingers. There were many more than usual and my hands felt like they were put in a fire ant bed. They were on fire for short periods. I take antihistamines and use calamine lotion which helps. They do not crust over, they just tend to go away with time. The bumps are not red like the allergic reaction that I had and my hands are not dry at all. The bumps just come and go and itch like mad sometimes. Does anyone know what this is?