Lower left back pain can stem from muscles, nerves, kidneys, or digestion. Learn what's likely causing yours and which symptoms mean it's time to see a doctor.
Acyclovir ointment treats genital herpes and cold sores, but it's not interchangeable with the cream. Learn how to use it, what to expect, and its side effects.
Practical steps you can take at the first signs of a depressive episode, from gentle movement and light exposure to sleep habits and knowing when to seek help.