Benadryl Allergy liquid cough syrup has no sugar and no alcohol. The dye free clear liquid goes down well. As a Type 2 diabetic, when I get sick I worry that the cold medicine will cause my glucose levels to skyrocket. Benadryl Allergy liquid cough syrup has worked well for me. I am able to keep my glucose levels within normal range while I use the cough syrup to eleviate the cough and sinus drainage that aggravates the cough.
This liquid works well for the occasional sinus allergies. The types of allergies best treated are the ones that cause drainage to the back of the throat. The excess mucus usually triggered a cough or sore throat. I have used the Benadryl Allergy liquid over the last year with great success.
However this product is not for long term use. The antihistamine will build up in your system to a point where I have experienced sleeplessness. Usually by the 3 day on the OTC medicine I will not be able to sleep. At this point, the best thing to do is to stop the OTC medicine. Hopefully by this point the worst part of the cold or allergy attack is over.
Last edited on Aug 28, 2009