Medically reviewed by Carina Fung, PharmD, BCPPS

Chickenpox Diagnosis

Due to the unique appearance of its rash, chickenpox is often diagnosed15 simply by looking at the lesions. A healthcare provider may also ask when you think you may have been exposed to chickenpox if you have a rash that resembles the chickenpox rash.

During a physical exam, your healthcare provider may check all areas of your body for the rash. Chickenpox rashes usually appear first16 on the chest, back, and face before spreading to other areas of the body.

If your healthcare provider is unsure whether your rash is caused by chickenpox or by another skin condition, they may perform a swab or sampling17 of the blister to test in a laboratory setting. Your sample can then be compared to known samples of varicella zoster to confirm the identity of the virus.

Disclaimer: The information on this site is generalized and is not medical advice. It is intended to supplement, not substitute for, the expertise and judgment of your healthcare professional. Always seek the advice of your healthcare professional with any questions you may have regarding a medical condition. Never disregard seeking advice or delay in seeking treatment because of something you have read on our site. RxSaver makes no warranty as to the accuracy, reliability or completeness of this information.

If you are in crisis or you think you may have a medical emergency, call your doctor or 911 immediately.