Cameron Diaz is battling another skin condition - a top doctor has spotted a nasty case of psoriasis just below her right elbow. The itch is known as 'heartbreak' by dermatologists, because it doesn't clear easily and can come back.

Diaz dared to bare her arms as she unveiled her star on the Hollywood Walk of Fame on Monday and eagle-eyed bystanders could clearly see the actress isn't all perfect.

In fact, celebrity skin expert Dr. Vail Reese has been scrutinizing Cameron's scabs and pimples for years and he insists the ringworm on her arm is just the latest in a long line of pigment problems for the actress.

He says, "After battling acne for years, yet another skin condition to deal with! She has also suffered with facial pigmentation issues and sun overexposure."

But all is not lost - Dr. Reese, who serves up his "Skinnies" dishonors annually to celebrities with bad pocks, pimples, zits and scars, insists Cameron's latest itch is easily treated.

He adds, "Though she is not my patient, it looks she has a form of psoriasis, that's showing some clearance in the center portion. Psoriasis is a pesky form of non contagious inflammation. Treatment for small areas involves prescription topical cortisone creams and vitamin D creams. Extensive psoriasis can be treated with injectable anti-inflammatory medicines called biologics. Since they suppress the immune system and can increase the risk of infections, those tend to be reserved for wider areas."

But, if Diaz doesn't get her latest skin issue cleared up quickly, she could land the ultimate dishonor on Dr. Reese's "Skinnies" list: "With her history of acne and everything else and now this, this may be her year for a Lifetime Achievement award!"

See more photos of Cameron here!

Image © Albert L. Ortega / PR Photos

(This news article provided by World Entertainment News Network)