Thick toenails come from a buildup of the cells that make up your toenails. Possible causes include increased age, nail fungus, peripheral vascular disease, and nail psoriasis (an autoimmune disease).
A blister on the toe is a fluid-filled pocket that often develops due to friction. Blisters can be caused by insect bites, allergies, burns, skin infections, autoimmune diseases, and excessive ...
From sun exposure to fungal infection to certain skin conditions ... laser therapy, and topical creams and ointments like hydroquinone, retinoids (such as tretinoin), and steroids.