From the symptoms herpetic whitlow and pompholyx needs to be ruled out. Herpetic whitlow is caused by HSV infection nd presents as painful nodules on the fingers. Pompholyx is also called dyshidrotic eczema and presents as itchy, small painful blisters on palms and fingers.
I would suggest a dermatologist’s evaluation for the same.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.