Herpes zoster from pink to purple is considered to be a normal phenomenon, infection, crusted pigmentation and so on. 1. Normal phenomenon: herpes zoster lesions show a variety of manifestations, and the patient’s resistance differences have a certain relationship, there are tonic, herpetic, hemorrhagic, gangrenous and so on, if it is hemorrhagic may be pink at the beginning, with the increase of bleeding will become purple. 2. Infection: most of the herpes zoster will appear papules, and then quickly turn into blisters. If you don’t pay attention to the hygiene and the blister area is infected, it will also change from pink to purple. 3. Scabbing pigmentation: herpes zoster with the development of blisters will dry up, scabs, scabs off, there will be a temporary large red spot or hyperpigmentation manifested as purple. Shingles from pink to purple, there may be other reasons, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor, choose the appropriate drugs for treatment.