The curse of the Celts: What exactly is rosacea and how can it be treated? 

Renee Zellweger, Cameron Diaz and Sam Smith have all been known to suffer with the skin condition

Cameron Diaz is just one high profile woman who suffers with rosacea. Picture: Getty

Everyone suffers with bad skin days. But if the flush you get after a few glasses of wine has developed into a persistent redness, you could have rosacea.

The inflammatory skin condition causes a tell-tale rosy hue to the cheeks, as well as visible blood vessels, dryness and bumpy skin texture. Renowned as the ‘curse of the Celts’, rosacea is one of the most common skin conditions seen in Irish patients