Itchy fingers with small blisters after scratching are usually due to eczema. Of course, it is also possible that blistering ringworm causes this condition. If the blisters are formed after scratching, most of them are due to the irritation of the skin of the fingers in the state of allergy, and the skin of the fingers is subjected to itching, and if the fingers continue to scratch, due to the mechanical stimulation, resulting in mechanical damage to the granular layer of the epidermis as well as the stratum corneum of the skin. Once the mechanical damage is formed, it creates fissures between the cells of the basal layer. Once the basal cells form a fissure after the formation of a small spongy edema, spongy edema continues to expand the formation of small blisters, this small blisters are often just a kind of pinpoint blisters at the beginning.