toenail fungus? (crowd cheers) don't hide it... tackle it with fda-approved jublia! jublia is a prescription medicine proven to treat toenail fungus. use jublia as instructed by your doctor. once applied, jublia gets to the site of infection by going under... and around the nail. most common side effects include ingrown toenail, application-site redness, itching, swelling, burning or stinging, blisters, and pain. tackle it! ask your doctor if jublia is right for you. larger size available.