is there a injection for shingles?

Yes, there is a vaccine for shingles called the Shingrix vaccine, which is recommended for adults aged 50 and older to help prevent shingles and its complications. It is not an injection specifically for treating shingles but rather for prevention. There is also a vaccine called Zostavax, but Shingrix is preferred due to its higher efficacy. If someone already has shingles, antiviral medications are typically used for treatment rather than a specific injection.