The common opinion:
Google Health says:
Jellyfish Sting Symptoms
- Symptoms include an intense, stinging pain, itching, rash, and raised welts.
- The progressive effects of a jellyfish sting may include nausea, vomiting, diarrhea, lymph node swelling, abdominal pain, numbness/tingling, and muscle spasms.
- Severe reactions can cause difficulty breathing, coma, and death.
- A sting from a box jellyfish or other venomous types of jellyfish can cause death in minutes.
When to Seek Medical Care
Seek immediate medical treatment if the person stung has:
- Difficulty breathing, difficulty swallowing, chest pain, or intense pain at the site of the sting.
- If the person has been stung in the mouth or placed tentacles in their mouth and are having voice changes, difficulty swallowing, or swelling of the tongue or lips.
- If the sting happened to someone who is very young or old.
- If the sting involves a large area of the body, the face, or genitals.
- If the patient continues to have itching, redness, pain, and swelling of the skin around the sting, see a doctor.
The doctor may prescribe:
- diphenhydramine (Benadryl) to help with the itching,
- pain medication for pain, and/or
- topical steroids or steroids by mouth to help with the swelling and itching.
- The doctor may also prescribe antibiotics if the patient has cellulitis. Take all medications as directed and until they are gone.
- If it has been longer than 10 years since the patient’s last tetanus shot, a booster shot might be recommended.