White bumps after swimming.


Q: After I swim in the ocean I get these small bumps on my face and arms. They are white and they itch a lot. They will last for around 6 days, but they gradually are reduced in size.


A:   The rash you are experiencing may be due to cercarial dermatitis also known as a swimmer's itch. This is caused by an allergic reaction to bacteria and parasites in the water. The symptoms include development of small reddish pimples that are associated with itching and burning sensation. Pimples may develop into small blisters. Itching may last up to a week or more, but will gradually go away. Do not scratch the bumps as it may lead to bacterial infection. In most cases the symptoms are relieved by corticosteroid cream, calamine lotion or any over the counter anti-itch lotion.

Related Q&A

Q: I have regular steaching of one side jaw in my mouth .but do not have any pain whats the reason

Q: Red pimples scattered on top of my foot? I had alopecia and took steroid injections to my head for 1 year.

Q: When I eat/use items containing Vitamin E I get a rash on the inside of my elbow. The skin becomes reddish and there ...

Q: I need help, I'm unable to sneeze , usually I sneeze regularly now I feel the sensation and desire to do it but somet...

Q: I broke out in red rashes all over my body except for my face and my knees to my ankles. I have been using prednozone...


Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon