Chest discomfort / pain should always be taken seriously. Proper exam and
diagnostic studies are the key to decide on treatment. And unfortunately,
most treatment will require prescription.
The only OTC meds your mother may benefit from is aspirin. If your mom does
not have stomach problem or allergy to aspirin (pretty rare), a baby dose
aspirin (81mg) daily is helpful, and is available in all pharmacies in the
US. In case of emergent chest pain, taking 4 pills of baby aspirin before
going to the emergency room also increases her chance of good outcome.
氧气机 is not useful and can be harmful.
glucosamine对关节炎怎么样
This is still an area of uncertainty in medicine. You will find people
swearing it works like magic. However, large scale clinical studies had
inconsistent results. It is unlikely a wonder drug, but may help or may do
nothing, we just don't have good evidence yet. But by in large, it should
be pretty safe.