Dear Anna,
I am so sorry your husband is not feeling well. Shingles can be qquite painful and tough to get rid of.
http://www.emedicinehealth.com/shingles/article_em.htm
However, it is specific to humans and cannot affect animals in any way.
Your pets know your husband is hurting and they are trying to soothe him.
I hope he feels better very soon.
Very sincerely,
Terri