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Painful rash on one side of body

Also called: Shingles

A painful rash on one side of the body is usually shingles. Antiviral medicine works best within 3 days. A rash near the eye needs same-day care.

Common causesShingles
Usually serious?Can be
Get checked ifAny shingles rash
If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.

Overview

Shingles starts with burning pain, then blisters in a band.

Pain can last after the rash heals.

When to get medical care

Call 911Not an emergency.
Get care todayRash near the eye, or weak immune system.
See a doctor soonAny one-sided painful rash.

Causes

Caused by the chickenpox virus waking up.

OwieClear has pages on 1 condition that can cause painful rash on one side of body. Each shows how soon to get care.

Common causes

  • ShinglesOften needs care today

    A painful rash, usually in a band on one side of the body, caused by the chickenpox virus reawakening.

What you can do at home

  • Keep the rash covered.
  • Use cool compresses.

Medicines

Antivirals help. Pain medicines for nerve pain.

At the doctor

Diagnosed by exam.

Questions you may be asked

  • Rash

The exam

A skin exam.

Tests

  • Swab test if unclear

Prevention

Get vaccinated.

  • Shingles vaccine at 50+

Check your symptoms

Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.

Start the symptom checker

Sources

Last updated 2026-11-13.