Medically reviewed by Sukaina Hasnie, MD Key Takeaways Chronic pharyngitis can last several weeks or more and often comes and goes.Viral infections like the flu, common cold, and COVID-19 can cause ...

A sore throat that comes and goes is a nuisance but usually not a serious cause for concern. Allergies, smoking, infections, and heartburn can all cause an intermittently chronic sore throat. A ...

A sore throat (pharyngitis) caused by a viral infection, such as a cold or the flu, typically lasts up to a week. Meanwhile, sore throats due to bacterial infections can persist for up to 10 days with ...