(Reuters) – The U.S. Federal Reserve’s big interest rate hike on Wednesday — and the expectation of more to come — is aimed at bringing down 40-year high inflation topping 8% on an annual basis in recent months. But the largest rate increase in a quarter century won’t deliver immediate inflation relief. It will take time for higher borrowing costs to ease price pressures. That could mean more pain for Americans already digging into their wallets to pay more for gas, groceries and pretty much everything else. “It’s going to be an uncomfortable period where inflation is running high and borrow…