The invention provides a method for treatment of the diseases in a human by identifying the human as one suffering from a herpes simplex virus (HSV), and then administering to the human the compound anti-HSV agent or a pharmaceutically acceptable salt thereof. The diseases include dermatosis and non-dermatosis, wherein the dermatosis include acnes, impetigo, pyoderma gangrenosum, chilblains and psoriasiform, asteatotic dermatitis, ichthyosis, lichen simplex chronicus (Neurodermatitis, Prurigo), seborrhoeic dermatitis, rosacea, perioral dermatitis, epidermal cyst, wound ulcer, discoid lupus erythematosus, vitiligo, Alopecia, diagnostic criteria of some autoimmune diseases such as systemic lupus erythematosus or diabetic skin complications, wherein the non-dermatosis include glomerulonephritis, arthritis, Crohn's disease, ulcerative colitis, myelodysplasia, multiple myeloma, demyelinating disease, Parkinson's disease, anemia, cytopenia those among the diagnostic criteria.