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Dear Dr. Roach: I’ve seen many people wearing a full face shield without any mask covering the nose or mouth. Does this make sense? C.B. A face shield provides some protection against COVID-19, but not as much as a face mask does.

Dear Dr. Roach: I am a man, 67 and I have difficulties urinating during the night. I get up three or four times from bed to do so, and the flow is very weak. I have no issues urinating during the day. Is there a reason to be concerned? K.S.

Dear Dr. Roach: Back in late 2014, I noticed a dampness in my underwear — no coloration, only dampness. I consulted a gastroenterologist about a possible anal discharge.

Dear Dr. Roach: In a recent column, you wrote that migraine of any kind starting in a person’s 60s is uncommon. I am a 66-year-old man in relatively good health. I have controlled blood pressure and cholesterol.

Dear Dr. Roach: Like everyone, I have been using a lot of hand sanitizer and a lot of disinfecting wipes throughout the day.

Dear Dr. Roach: My 90-year-old father has been diagnosed with breast cancer. His doctor is recommending mastectomy, after which time they will determine a course of treatment.

Dear Dr. Roach: I’m overweight, with some physical mobility and fatigue issues because of autoimmune-related inflammatory arthritis.

Dear Dr. Roach: I lived in England in 1985-1986, during the mad cow disease outbreak. Since then, I have been ineligible to give blood. It is one of the few questions they ask.

Dear Dr. Roach: In your column about statins, you said they have the potential for side effects.

Dear Dr. Roach: I’m 35, and have newly diagnosed Type 2 diabetes. My hemoglobin A1C went down from 7% to 6.6% on metformin, and my doctor just added Januvia.