Hello,
It can be due to pompholyx of fungal infection. Pompholyx is also called dyshidrotic eczema. It is characterized by a sudden onset of many deep-seated pruritic, clear vesicles which itch and then peel off. As a result the skin may also fissure.
Treatment is different for both. While it is steroids for eczema, it is topical and oral antifungals for the fungal infection. I suggest you to get the diagnosis confirmed from a dermatologist and then start wit h the treatment.
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.