Thanks. I'll be upgrading from simple cotton.
yeah that should help a lot... cotton retains moisture and is quite abrasive. The combination of heat, moisture and friction are what causes your blisters. A good running sock will be some sort of technical fabric (or wool) that will help manage moisture by pulling it away from your foot and allowing it to evaporate through the ventilation built into your shoes. the tech fabric will also helping to alleviate some of that friction. It really is a lot more comfortable and I'd bet that this goes a long way to help your blister problem.