DP is very prone to sinus infections. He's had surgery twice but neither time had been successful, leaving him prone to infection. I can smell it on his breath when it happens. It's not noticeable unless I am close to him, so I don't think anyone else would notice. Should I tell him? I don't think he always knows he has an infection and I don't know how much it would help him to know and I don't want him to be paranoid that he smells. The recurrent infections mean that he can't smell very well and I don't want to upset him. Antibiotics are of limited use and he usually waits for them to get better on their own so it's not as if telling him would mean treating it sooner. WWYD?