Written by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician Published: March 1, 2026 | Last Updated: March 1, 2026 If you've recently had a hyaluronic acid injection for knee arthritis—or you're considering one—you're probably wondering what comes next. Questions like "Is this soreness normal?" and "When will I start feeling better?" are among the most common things I hear from patients in my clinic. In this guide, I'll walk you through everything you need to