DEAR DR. ROACH: In two weeks, I am supposed to get Botox injections for my overactive bladder (OAB) and my frequent need to urinate at nighttime. Are these injections safe? Are there any bad side effects? How long do they work? -- D.J.
ANSWER: The initial treatment for OAB symptoms usually consists of lifestyle changes (i.e., quitting smoking and avoiding medications that worsen symptoms at night),…