You may already know about the wrinkle-reducing powers of Botox. Scientists have shown that Botox also works well in treating bladder problems. However, it's still unclear how long patients actually stick with the treatment and what prompts them to stop.

Tremors in the upper limbs are a major concern for two-thirds of multiple sclerosis (MS) patients as they can contribute to disability and are considered by to be one of the most difficult symptoms to treat.

A United Kingdom-based independent public health agency has recently published draft guidelines recommending approval of Botox injections to treat chronic migraines.

Botox -- perhaps best known for fighting wrinkles associated with aging -- also is approved as a treatment for chronic migraines, though studies evaluating its effectiveness as a headache reliever have been mixed.

Botox is a promising new treatment for people with overactive bladder ( OAB ), or urge incontinence. But is it safe to rely on repeated injections?