Medicines can treat or prevent illness and disease. However, sometimes medicines can cause problems. These problems are called adverse drug reactions. I believe I had the unfortunate opportunity to experience this last night. I inadvertently took 3 tablets of an antihistamine to treat my severe allergic rhinitis. Consequently, I woke up with rashes all over my body, red and warm ears, and puffy eyelids. I have been taking 2 tablets of the medicine at bedtime for sometime now and I felt no unpleasant effects, until last night, when I took a tablet more. It’s like I became ‘allergic to an anti-allergic drug’! This can happen to you as well and you should know what to do if you think that you or someone you take care of is having an adverse drug reaction. Remember that people who take more than 3 or 4 medicines every day are more likely to have an adverse drug reaction. One medicine might cause an adverse reaction if it is taken with another medicine. One way to reduce yo...