Top of the page
Jellyfish stings make raised, red welts that develop along the site of the sting. The welts may last for 1 to 2 weeks, and itchy skin rashes may appear 1 to 4 weeks after the sting.
Portuguese man-of-war stings result in a red line with small white sores. In severe cases, blisters and welts that look like a string of beads may appear.
Seabather's eruption is a rash that develops from the stings of jellyfish or sea anemone larvae. The rash can be itchy and annoying. It usually goes away without medical treatment in 10 to 14 days.
Coral scrapes and cuts may take weeks and sometimes even months to heal completely.
Your home treatment depends on what type of sting or scrape you have and how severe it is. You may need to wash the sting or scrape or change a bandage. Your doctor may give you medicine to take or to put on the affected area.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Call 911 anytime you think you may need emergency care. For example, call if:
Call your doctor or nurse advice line now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor or nurse advice line if the rash, sting, or scrape is not getting better each day.
Go to https://www.healthwise.net/patientEd
Enter W637 in the search box to learn more about "Marine Stings and Scrapes: Care Instructions".
Adaptation Date: 5/24/2022
Adapted By: Alberta Health Services
Adaptation Reviewed By: Alberta Health Services
To learn more about Healthwise, visit Healthwise.org.
© 2006-2023 Healthwise, Incorporated. All rights reserved. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.