Chemotherapy may not be a contraindication to undergo Botox and fillers. If your oncologist allows it then it can be done, as many of my patients have been allowed to have both. some people might have very intense chemo that will interfere with their defenses against infection and then possibly a slightly greater risk of infectiton would occur from having fillers, but this still would be rare.It is important for those who are having chemotherapy, to maintain as optimistic a view as possible and feeling better about themselves during the treatment may help their immune system cope. They shouldn't feel guilty having an aesthetic treatment during such an important treatment as chemo, but feel rather, that the aesthetic treatment is an adjunct to treating their whole person and helping them progress through and complete the chemo and increasing their odds of getting a remission.