How do I politely ask my MIL to keep to herself when she's sick? We were at my ILs yesterday and she was blaming her breathing problems on her asthma... She also had yellow mucus, phlegm, and a scratchy throat. I have asthma too so I told her it could be a respiratory infection because it didn't sound like asthma to me at all. The problem is that she NEVER thinks she's sick... it's always, oh my allergies (runny nose, cough, yellow mucus), oh it's something in the air (runny nose, cough, yellow phlegm), it's my medication (she had diarrhea and was vomiting and baby caught the bug a few days later). I've tried subtly suggesting that she see a doctor to rule out a sickness to be on the safe side with baby but she get defensive. I am getting really tired of it... They see baby at least 2x a week so it's not like they're deprived if we miss a visit by playing it safe!