MS relapses: how to recognise one and what to do
Not every rise in symptoms is a relapse. Learn the difference between a relapse and a temporary worsening from heat or infection, and when to call your care team.
Key takeaways
- A relapse is new or worse symptoms lasting over 24 hours without fever or infection.
- Heat and infection can cause a pseudo-relapse that improves when treated.
- Log symptoms, contact your team and don't change medicines yourself.
- Many people recover from a relapse over weeks to months.
What is a relapse?
A relapse is new nerve symptoms, or old ones getting worse, that last more than 24 hours, come after a stable period, and aren't explained by a fever or infection.
A pseudo-relapse
Sometimes symptoms get worse because of heat, an infection such as a urine infection, or severe exhaustion. This is called a pseudo-relapse and usually improves when the cause is treated. That's why your doctor asks about fever and signs of infection.
What to do if you suspect a relapse
- Note the new symptoms and when they started.
- Notice whether you have a fever or burning when passing urine.
- Contact your neurologist or MS team.
- Don't start or stop any medicine on your own.
Treatment
Some relapses get better on their own, and some may need short-term treatment that your doctor decides on. Repeated relapses can be a reason to review long-term treatment.
Recovery
Many people recover fully or partly from a relapse over weeks to months. Physiotherapy can help regain strength and balance.
References
Content is educational and does not replace medical advice. In an emergency, contact emergency services immediately.
