A tanning bed rash may develop within a few hours or days after using a sun bed.
What Causes a Tanning Bed Rash?
Reproduced with permission from DermNetdermnetnz.org2023.

Reproduced with permission from © DermNetdermnetnz.org2023.
The rash may appear within a few hours or days after exposure.
Ingredients in some medicines can make your skin more sensitive to UV rays.
Some of these medications include:
What Are the Symptoms of a Tanning Bed Rash?
What’s the Outlook for Someone With a Tanning Bed Rash?
The outlook for a tanning bed rash is usually good.
Despite causing discomfort, a tanning bed rash usually clears up in a few days.
However, additional sun or UV exposure in the affected area could delay recovery.
Although the rash doesn’t raise the risk for skin cancer, repeated UV exposure can increase your risk.
Summary
A tanning bed rash occurs from too much UV exposure while using a tanning bed.
Symptoms of a tanning bed rash include inflamed, raised bumps and itchiness.
Treatment for a tanning bed rash includes cold compresses, aloe vera cream, and anti-itch ointment.
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U.S. Food and Drug Administration.The risks of tanning.
Children’s Minnesota.Is tanning making me itch?
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American Osteopathic College of Dermatology.Polymorphous light eruption.
OSF Healthcare.Heat rash, sun rashwhat’s the difference?
American Cancer Society.What is UV radiation?
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American Academy of Dermatology.10 surprising facts about indoor tanning.