It is generally recommended to get the shingles vaccine if you have already had shingles. Shingles vaccine is used for middle-aged and elderly people over 50 years old, the whole vaccination 2 doses, two doses of 2 ~ 6 months interval, foreign clinical studies show that the vaccination of two doses of shingles vaccine for people over 50 years old to reduce the risk of herpes zoster by 97.2%. The recurrence rate of herpes zoster is 1%~6%, and with the increase of age and the decrease of body resistance, the recurrence rate of people over 50 years old will be further increased. The shingles vaccine targets patients who have already been infected with the varicella-zoster virus and prevents the virus from reactivating in the body and triggering the disease. Therefore elderly people who have already had shingles will still benefit from the shingles vaccine, reducing the risk of recurrence.