Not Medical Advice: Yes. According to Drugs.com, avoid taking a bath or shower within 1 hour before or after you apply capsaicin to your skin. Also avoid swimming or vigorous exercise. Warm water or perspiration can increase the burning sensation caused by capsaicin.
Icy Hot PM (Generic Name: Capsaicin Topical) can cause a burning sensation, which is usually mild and should lessen over time with continued use. It is used for temporary relief of muscle or joint pain caused by strains, sprains, arthritis, bruising, or backaches.
There is often no single or certain cure for low back pain; the key is to find what works best for you, and this often involves a process of trial and error. Check out some remedies that are often overlooked in the traditional medical model at Spine-health.com.