Veterinarian Recommended. ZYMOX Ear Solution with 0.5% Hydrocortisone contains a patented combination of enzymes to aid in removing ear exudate and maintaining ear health. ZYMOX Enzymatic Ear Solution with 0.5% Hydrocortisone promotes healthy ears and relieves itching due to minor inflammation, dermatitis, and other minor skin irritations. ZYMOX Ear Solutions advanced technology makes caring for a pets ears easy and fear-free with reduced touching of sensitive ears. For use on any age dog or cat.