Precautions1.When pasting the ostomy bag hydrocolloid barrier, first ensure that the skin around the stoma is clean and dry, and it is best to use the standing or lying position to keep the skin around the stoma flat. It is best to press evenly for a few minutes after flat pasting to strengthen the adhesion; 2.If there is too much body hair around the stoma, the body hair should be removed first, otherwise it will affect the sticking effect or easily lead to the occurrence of folliculitis; 3.Do not use disinfectant, soap or even oily cleansers when cleaning the skin around the stoma. Only use warm water to thoroughly scrub from the inner ring of the stoma to the outside.