Hi,i have small molluscum contagiosum bumps and my dermatologist already gave me 2 sessions of cryotherapy,in this 2 sessions 1-2 bumps heal...so how many sessions of cryotherapy are required to heal each spot or bump completely?

Individual lesions should clear completely after a single cryotherapy treatment, although it makes sense to treat a second time if lesion persists at the next session. More important is that new lesions can keep appearing for a few weeks, and each should be treated. Or ask your doctor to teach you how to self-treat, e.g. with imiquimod or self-curettage.