Talk to Cancer Specialist / Oncologist on Chemo Caregiver Safety

Please tag an oncologist, we have a small child who is on blood cancer treatment. he is on chemotherapy drugs. his doctor has asked us to give pills of chemo in crushed form since he can't swallow a pill his mother directly touches the pills and also his bodily fluids when he is on chemo. Google says that we can get cancer by coming into contact with chemo medicines and the bodily fluids of someone on chemo treatment. please clear that, if we are safe or not after so many frequent contacts?