What are home treatments to gingivitis?

Brush, floss, Rinse: Home treatments are essentially brushing, flossing, water pik use and perhaps even the use of interdental brushes that can clean between your teeth. Generally, everything you can do to remove food that is on your teeth and gums will help you reduce the risk of gingivitis.

Good oral hygiene: Your best and only defense is regular brushing, flossing and bi-annual dental cleanings. You should brush in the morning and at night for two minutes. Each time. Flossing before you brush is also a good idea. I personally like an ultrasonic toothbrush as well. Follow this up with a visit to your dentist twice a year at a minimum.

Floss!: Good brushing and flossing, and perhaps use of a good mouthrinse like listerine. If it is just gingivitis then this will be beneficial, but if it's progressed to a more serious form, affecting the bone, your home care will not cure the problem.