During this period they will neither eat nor drink. They will not stay in their water bowl but instead bury themselves as much as possible beneath the foliage and substrate. Instead of shedding their skin, they retain it. It will harden up, giving your frog the appearance of being encased in plastic. Do not disturb your frog when it is in this state.
Estivation is done when the temperature becomes too hot or too cold for the animal's comfort.
Just keep the frog covered with his plant materials, keep fresh water in its bowl, and, as long as it is not losing any body mass, be patient. Eventually, when the ornata feels it is time, it will begin softening and shedding it protective covering, hop into its water, and be ready for a meal. Amphibians should be handled as little as possible as the secretions from our skin are harmful to them. While many human and veterinary drugs and topical solutions are safe for use with reptiles and amphibians, amphibians do present a problem due to their extremely sensitive, permeable skin. Be sure to rinse out tanks and furnishings completely before replacing the amphibians.