Medically reviewed by Jurairat J. Molina, MD A circular rash is commonly caused by a fungal infection called ringworm. However, there are many rashes that look like ringworm but aren’t. They may be ...

Jamie Samnang, 41, initially thought she'd suffered a mosquito bite when she developed an intensely itchy rash on her arm that caused ... I started to get these red raised bumps that were filled ...