`Teenager Jack Taylor was left looking like an "elephant boy" after trying to dye his hair black.
His head swelled up after he had a suspected allergic reaction to dye made by L’Oréal – whose slogan is "because you’re worth it".
The 15-year-old still has a rash on his face and body two weeks later – and is being treated with steroids and antihistamine tablets.
Jack, who has dyed his hair in the past without problems, said yesterday: "I did it for fashion but it wasn’t worth it."’