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.
Plug your nostrils. Your taste buds only recognize six tastes: sweet, salty, bitter, sour, and savory (Umami). The rest is in the nose. If you can avoid smelling the food, you'll avoid a large part of the flavor. Pinch your nose as you eat or drink anything to neutralize a significant portion of the taste involved.