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Dear Dr. Roach: I am a 72-year-old woman, and I have had a dryness problem for two years. My face, nose, arms and legs are extremely dry. My doctor doesn't know what is causing it or what to do about it.

Dear Dr. Roach: I have a dilemma. I suffered an aortic dissection nine months ago and was put on labetalol. I have bounced back well, and at age 84 take care of my house and husband, cook for three adults and am generally healthy.

Dear Dr. Roach: Your recent column regarding cognitive decline after surgery suggested careful consideration prior to elective surgery.

Dear Dr. Roach: I read on the internet that you should take your blood-pressure medicine at night. I just recently started taking medicine for my blood pressure and my instructions were to take it first thing in the morning.

Dear Dr. Roach: I am a 75-year-old man, five feet, three inches tall, weighing 123 pounds with a blood pressure of 110/60. The only known ailment I have is hypothyroidism, which is being treated.

Dear Dr. Roach: A few months ago, my husband was told that his prostate cancer has returned. He now has Stage 4 cancer.

Dear Dr. Roach: I recently read that tuberculosis kills more people than any other infectious illness. Can people who have no symptoms spread this disease? R.R. Tuberculosis, an ancient disease, is caused by Mycobacterium tuberculosis.

Dear Dr. Roach: I am having a serious, lengthy battle with cellulitis on my lower leg. For nearly three months, nothing any doctor has recommended or prescribed has worked.

Dear Dr. Roach: I am an 83-year-old African American woman who is contemplating having a neurostimulator implanted in my back. I am a non-insulin diabetic, and my last A1C was 6.7. I had a laminectomy with fusion 15 years ago.

Dear Dr. Roach: There are a lot of flu cases in my state, and people are very worried.