Blisters on toes/feet

I went to the beach about two months ago. I think my toes got sunburned.  I have never had this problem before, I have burned the tops of my feet, but never my toes.  Since that time, I have had random blisters appear on my toes (mainly around the cuticle ares) and lately, I got a rather large one on the outside of my "big" toe and a small one on the side of my foot.  The skin on my toes and feet has been very dry and has also been peeling.  I wouldn't think I would still be developing blisters this long afterwards.  I am a beach lover and tan quite well.  I do wear sunscreen and rarely burn.