Common side effects of Finacea Gel include application site reactions (burning, stinging, tingling, dryness, tightness, scaling, itching, redness, irritation), dizziness, headache, diarrhea, nausea, stomach pain, loss of appetite, constipation, changes in taste, furry tongue, and dry mouth.
Candida Overgrowth. Yes, sometimes people with Candida overgrowth experience a strong metallic bitter taste as a result of the toxins it emits. I have found that taking pantethine and molybdenum helped greatly with undesirable tastes in the mouth caused by candida. Hormone Imbalance.
1 You have an unusual, bad, or awful taste in your mouth. 2  You have a âblood-likeâ taste in the mouth for no reason. 3  You have an ammonia or bitter taste in your mouth. 4  This bad taste is not related to something youâve eaten or anything youâve done recently.  No matter what you do, this bad taste doesnât seem to go away.