A Painful One-Sided Rash: When to Ask About Shingles
It can be tempting to explain a new rash as friction from a workout or another episode of eczema. But a painful or tingling rash on one side of the body can have a different cause, including shingles, and deserves prompt medical assessment.
What makes shingles different?
CDC describes shingles as a painful, often itchy rash that commonly develops on one side of the body or face. Pain, itching or tingling can occur before the rash. The virus is related to the one that causes chickenpox; a clinician can assess the diagnosis and options for treatment.
CDC states that antiviral treatment is most effective when started within 72 hours of symptom onset. Contact a clinician as soon as you suspect shingles, even if that window has passed. A rash on or near the eye needs urgent same-day evaluation because eye involvement can threaten vision.
| Question or situation | What to know |
|---|---|
| New one-sided pain, tingling or blisters | Call a clinician promptly and describe where and when symptoms started. |
| Rash near an eye or changes in vision | Seek urgent medical evaluation immediately. |
| Until advised by a clinician | Avoid touching or scratching the rash, keep it covered as advised, and pause shared activities if there is a transmission concern. |
| Worsening symptoms or feeling very unwell | Seek prompt medical help. |
Protect others while getting care
A person with shingles can spread varicella-zoster virus to someone without immunity, who may develop chickenpox—not shingles. CDC recommends covering the rash and avoiding contact with certain vulnerable people until the rash has crusted. Follow your clinician's guidance about exercise, work and return to shared spaces.
Read how eczema differs from contagious skin infections and when to consider urgent care for rapidly worsening blisters.
Dr. Arsy Hydration Recovery Moisturizer #003 is a fragrance-free moisturizer for dry, sensitive and eczema-prone skin. Follow the label and your clinician's advice; it is not a treatment for an infection or other medical condition.
Sources and further reading
- CDC: Shingles symptoms and complications.
- CDC: Clinical overview and treatment timing.
- CDC: About shingles and reducing spread.
Educational information from Dr. Arsy, not individual medical advice. Cited organizations and researchers do not endorse this product.