An effervescent solid composition of matter is provided, which comprises, as
an
active component, a substance selected from chitosan, its derivatives and salts
thereof and a second component capable of releasing CO2 in an acidic environment.
Also, methods for treatment of a mammal suffering from a dermal wound, or for
prophylactic or wound-healing treatment of lactating animals prone to develop or
suffering from mastitis, are provided. The methods comprise the steps of:
- a) admixing said effervescent solid composition of matter with an aqueous
liquid to form a solution or suspension thereof;
- b) contacting said animals with said solution or suspension to provide
such treatment.