oh boy it looks like shingles. i have it to for a long time . have you aske your doctor about the current shingrix immunization. i have had the vaccine and if you had shingles in the past, Shingrix can help prevent future occurrences of the disease. There is no specific length of time that you need to wait after having shingles before you can receive Shingrix, but generally you should make sure the shingles rash has gone away before getting vaccinated.