First of all, finger herpes refers to the appearance of small blisters on the fingers. There are two diseases that are common in the clinic where small blisters appear on the fingers, the first is herpes sweat, which is actually a special type of eczema in the clinic. It is directly related to allergies and to being in a hot and humid environment for a long time. However, there are also small blisters on the fingers that are caused by fungal infections, also known as ringworm. Therefore, if a small blister occurs on the finger, it is best to go to the dermatology department of a regular hospital for consultation. It is not possible to make further judgments simply by describing a symptom such as finger herpes.