I have been experiencing constant diarrhea for the past day, which has occurred six times today. I suspect it might be due to eating something bad at midnight. I also feel nausea at times and have a poor appetite. I am 22 years old and have taken some Chinese medication for the diarrhea, but it has been ineffective. I have not seen a doctor or had any investigations done for this issue. What could be the cause, and what can I do to alleviate these symptoms?

August 3rd, 2023

Hello Dr. David, my 3.5 year old son started to have a 39°C fever and dry cough 5 days ago. We were managing with Tylenol, and this morning his temperature dropped to 37.4°C but he is still coughing badly. He couldn’t sleep well because of the coughing. I'm concerned that it may be pneumonia. He is not breathing fast though.

February 1st, 2023

How severe is congestive heart failure and is it inherited by sons or daughters? Is it a deadly condition or does it just shorten life span? What are the end-game treatments for it? What is the average life span of people with congestive heart failure, and how does regular treatment affect this?

June 4th, 2024

My 11-month-old has been on Nutramigen hypoallergenic formula since birth. Due to supply issues, we recently switched to the toddler version, but now we can't find any similar formula. What should we do?

March 22nd, 2024

My 89-year-old mother has a finger that looks unusual and itches. There is no pain, redness, or heat, and she can move her finger normally. Should I take her to a doctor to check for a bug bite, infection, or arthritis?

October 22nd, 2023