My dad used to trim those lids with his pocketknife so Mom could open them (before "arthritis friendly" caps became available).
Thanks for the link (and the nudge).
There was a story on the news last night when I was visiting Mom about the huge incease in pneumonia cases this year -- mostly "walking pneumonia," a bacterial infection that's often secondary to a cold. If you get a cold and are still coughing (or worse, wheezing) 2 weeks later, go to the doctor. Or if you get sick, start to feel better, then feel worse again, go to the doctor. Both those scenarios indicate a secondary infection, probably bacterial, which means antibiotics will take care of it.