Dologel - CT Gel is a topical medicine for mouth ulcers or sores. It contains choline salicylate, lidocaine, and benzalkonium chloride to kill bacteria, reduce pain, and swelling. Dologel- CT Gel is used to relieve pain and inflammation caused by mouth ulcers. Acting as both an analgesic and antiseptic, it soothes discomfort and supports faster healing of oral lesions. Dologel CT Gel is a topical formulation for oral pain and inflammation. It contains choline salicylate, tannic acid, and cetalkonium chloride. Learn how to apply it and what side effects to avoid. Dologel-CT Gel helps relieve pain and inflammation caused by mouth ulcers, sore gums and denture irritation. Apply it over the affected area with a clean fingertip, three to four times a day or as directed by your doctor. Stop using this medicine and inform your doctor if any irritation occurs. If symptoms persist for more than seven days, consult your doctor.