Answer:
3) Herpes zoster
Explanation:
Herpes zoster, popularly known as shingles, is a viral infection caused by the same chicken pox virus, Varicella-zoster, which may remain dormant or inactive in the spinal column and be reactivated in people after 50 years of age if expressive drop in immunity. In most cases, the disease manifests once and disappears after a few weeks. Anyone who has had chicken pox can develop an episode of herpes zoster. In the case of the man exposed in the question, we can say that he is having a case of hespes zoster, because he already had chickenpox when younger and is now taking immunosuppressive drugs, which weaken the immune system.