Conditions.
Last updated September 2, 2026.
Plain-language condition guides: what it likely is, how a doctor would think through it, what treats it, and when it is urgent.
Lower back pain
When to worry, common causes, red flags that mean urgent care, and what actually helps.
Read →Strep throat
Symptoms, strep vs virus, when you need the test and antibiotics, and red flags.
Read →UTI (urinary tract infection)
Symptoms, when telehealth can treat it, kidney infection warning signs, and treatment.
Read →Sinus infection
Viral vs bacterial, the 10-day rule, whether you need antibiotics, and home care.
Read →Flu vs COVID
How the symptoms differ, when to test, antivirals and the 2-day window, and the emergency signs.
Read →Ear infection in adults
Middle ear vs swimmer's ear, whether you need antibiotics, pain relief, and the red flags that matter.
Read →Pink eye (conjunctivitis)
Viral vs bacterial vs allergic, how long it is contagious, whether you need antibiotic drops, and red flags.
Read →Heartburn or heart attack
How the two kinds of chest pain differ, the warning signs that mean call 911, what helps heartburn, and when it becomes GERD.
Read →Bronchitis vs pneumonia
How to tell a chest cold from a lung infection, and which one needs antibiotics.
Read →