Below is an instruction from Human. Write a response.
    ### Instruction:
    Who is at risk for Oxygen Therapy? ?
    ### Response:
    Oxygen therapy can cause complications and side effects. These problems might include a dry or bloody nose, skin irritation from the nasal cannula or face mask, fatigue (tiredness), and morning headaches.
                
If these problems persist, tell your doctor and home equipment provider.
    