The phrase "cotton gloves" refers to a type of hand protection made from cotton fabric. It can also be used metaphorically to describe handling something delicately or with great care. Full definition
The technicians must work in a clean environment that sometimes them to wear white cotton gloves when handling the components. (public.nrao.edu)
When using rubber gloves, wear cotton gloves underneath, to avoid irritation. (parsleyhealth.com)
Keep your nails short, try wearing soft cotton gloves at night when you sleep and keep itchy skin covered to prevent scratching the area. (healthcare-online.org)