Discussions that mention hydrocortisone

Allergies board

I took a look around and the only thing that I could find what this:
Seabather's eruption is an itchy rash caused by the larva of a jellyfish. It's also called "sea lice." The tiny larvae "fire" their poisons into the skin, causing rash between 4 and 24 hours after exposure. The rash tends to occur where the larvae can become trapped against the skin, such as under the bathing suit or under long hair.
Symptoms such as nausea, vomiting, diarrhea, aches, muscle spasms, low-grade fever, and headaches can accompany the rash, particularly in children.
Bathing suits with tight fabric are more resistant to the larvae. Avoid wearing T-shirts in the ocean. Sunscreen can help.
Once the rash develops, use 1% hydrocortisone cream on the rash, and take diphenhydramine (sample brand Benadryl) for itching. The rash usually goes away in about a week.

Hope that helps!