Is it safe to kiss someone who had shingles three years ago?

Yes, it is generally safe to kiss someone who had shingles three years ago, as shingles is caused by the reactivation of the varicella-zoster virus, which typically does not pose a risk after the lesions have healed. Since shingles is not contagious in the same way as the flu or a cold sore, the primary concern is if the person has active lesions. If they are fully healed and the person is no longer experiencing symptoms, kissing should pose no risk. However, it’s always best to ensure both parties are comfortable and healthy before engaging in close contact.