Interesting question. I am also an ever learning student. Molluscum contagiosum and it's symptoms apparently belong to the Sycotic Miasm (Miasm of excesses, growths etc.) I would look first at the totality of symptoms of the patient, whether this is a chronic condition (over 6 months) or acute (under 6 months) and then take the patients case and repertorize based on clients individual symptoms. I would look very hard at symptoms which are unique to the client maybe not necessarily the illness itself. Interestingly, enough Molluscum Contagiosum is a pox virus and is related to the small pox virus. So 2 remedies pop in my head Thuja, Variolinum but it also could be completely different remedies based on the clients case.
I hope this helps,