So, I've been playing for a month or so and had blisters about 3 days in. I simply popped them and continued playing. About 2 weeks after a blister returned on one of my picking fingers and now I've read that you are not supposed to drain them because you'll ruin the callouses. But this particular blister won't go away. I took 2 day pause and still, nothing. I am not particularly interested in taking anymore breaks so tips are really appreciated!