• Swine flu fears help high street chain• Credit crunch has allowed group to buy back its own debtBoots the Chemist has bucked the high street gloom to report strong first-half sales as consumers bought low-cost "treats" such as lipsticks and face creams as well as bacterial gels, amid worries over swine flu.Like-for-like sales at Boots' UK stores climbed 3.4% in the six months to 30…
