Decubitus blisters are a common symptom of stage II decubitus ulcers. Stage I decubitus ulcers belong to the bruised erythematous stage, and if the pressure on the skin is not improved after the erythematous stage, then inflammatory infiltration of the skin will occur and blisters will be formed, and the treatment of the blisters will be different according to their size. 1.Causes of decubitus blister formation Decubitus blisters occur in the second stage of inflammatory infiltration of decubitus ulcers, the first stage is the erythema phase, due to long-term pressure and skin bruising erythema, after the occurrence of erythema does not improve the pressure in a timely manner, the inflammatory exudate below can not be discharged normally and blisters are formed, such as continued delay or improper disposal, will evolve into superficial rupture wounds, or even deep ulcer wounds. 2, large blister disposal methods blister diameter greater than 1cm, it is necessary to use a syringe or sterile needle to puncture the blister, drain the internal exudate, and then use saline to clean the trauma, can be timely to the trauma repair department, or topical decubitus ulcer cream, muscle cream type drugs with gauze bandage care. 3.Small blister treatment method Blisters less than 1cm in diameter are cleaned and wiped with saline directly, and topical decubitus ulcer drugs are used to care for the erythematous trauma surface. 4, after the rupture of the blister treatment method blister rupture is transformed into a superficial rupture wound, you need to promptly clean the ruptured blister with saline to promote the internal exudate discharge, the external use of drugs or dressings for protection, to prevent secondary pressure or friction to stimulate the wound. Daily attention to keep the skin clean and dry, timely removal of excrement to prevent stimulation of skin redness, in addition to diligent inspection of the skin, found redness under pressure, timely correction of care omissions, diligent turning and changing, improve the skin pressure situation.