Methods for using compositions comprising a Granzyme B inhibitor and a pharmaceutically acceptable carrier for treating and/or preventing blistering and/or peeling of a skin of a subject are provided. Also provided are methods for using the compositions to improve the healing of a blistered or area of peeled skin of a subject. The compositions can be formulated for oral administration, nasal administration, topical administration, subcorneal administration, intra-epidermal administration, sub-epidermal administration； or for administration by injection.
