Okay, now that you're on the right forum :) Blisters can be from various things...wrong fitted shoes/socks that rub against the toes, excess moisture, fungal infections, allergic reactions (you can have allergies at any time regardless of past history), Diabetes, poor circulation. The list can go on and on. The best place to start is where you already did, by going to your doctor to try to find the culprit.
I don't get blisters on my toes, but I do get little painless ones on my legs all the time. No known cause, but my docs tend to think it's from either my medications or my auto immune issues.
Moderator-Allergies/Asthma and Alzheimer's, Co-moderator-UC
Diagnosed Left sided UC in '92 - meds: 6mp, Colazal, Remicade and Bentyl*Unable to tolerate ALL mesalamines*, in '11 diagnosed with IBS, Diverticulosis, Fibromylagia..I also have Sacroiilitis, Scoliosis, Raynauds, OA, PA, Rosacea, Psoriasis, Dry Eye and allergies controlled by Zyrtec and Singular