Hi I have been running on the shingle on the beach near me and I have developed a rather nasty blister on my toe. It is so big it maybe gives me and extra half inch in height Whats best for it pop it and stick a plaster on it or leave it as is? with the people who I have asked , their opinion is divided on pop or not. Also do feet natually toughen up in time? As up until now it has been trainers or trainers in terms of my footwear. Thanks in advance.