Mouthwash to treat gum disease?

I got gum disease but it not bad. I have took antibiotics. I have had a dental cleaning and I been using this mouthwash I got of my dentist for my gum disease corosdyl. I have also been brushing my teeth more and I been using soft tooth bristle brushes. My dentist says my gum disease is getting better and it under control. My teeth are all white and healthy and are quite strong. I don't have any bone loss. It my gums that was the problem. There were all red, inflamed, swollen and sore. They are stil sore but not as bad as what they was. The mouthwash I got of the dentist corosdyl is making me sick. It taste horrible kinda like medicine and is making me feel sick. It is making my gums better though as it stops my gums from hurting but I can't stand the taste. Is there any other mouthwash I could use for gum disease. What about Listerine. Is that any good. I used to use that. I much prefer that mouthwash. I do really want my gums to be better but I don't like using corosdyl. Is there any other mouthwashes I could use that treats gum disease?