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Dear Dr. Roach: I am an 84-year-old woman in relatively good health, with a concern about diverticulitis. I had my first attack 10 years ago. The second attack was two months ago, and I had a CT scan that showed an apparent infection.

Dear Dr. Roach: I have been suffering from cold urticaria for about nine years. It manifests itself in itchy skin or hives, generally from skin contact with the cold — anything below 20 C brings mild itching, and hives appear with lower temperatures.

Dear Dr. Roach: Would you discuss causes of nocturnal leg cramps? I have exhausted all of the common remedies without success. R.S., M.D. Leg cramps are common. They begin suddenly and affect the calf or foot with an involuntary, painful contraction.

Dear Dr.

During the flu season, I’m often asked if I get a flu shot. But there’s a big difference between a cold and the flu. So read this column with reservation, and remember I am not your doctor.

Dear Dr. Roach: Do women who have their ovaries and uterus ever stop ovulating? I am 70 and have begun having menses regularly again. I do know when I ovulate, and always have. My periods did not begin to cease until I was about 57. A.S.

Dear Dr. Roach: Like thousands of people, I have experienced heartburn for years. Chewable antacid tablets provide temporary relief.

Dear Dr. Roach: My 81-year-old father takes 100 mcg of Synthroid. Due to the high cost of insurance, and the need to change his Medicare policy, we are trying to lower his prescription costs. One way is to get the generic.

Dear Dr. Roach: I am a welder, and I often use acetone to wipe minor cuts and abrasions in the workshop. It stings pretty good, but it gets rid of the dirt, grease, etc. What do you think about that? D.S. I think that is not a good idea.

Dear Dr. Roach: My wife and I have been married for over 50 years.