As soon as you spot the first symptoms, contact your vet. In the meantime, you can use Respi Miloa. The sooner you act, the better. Put your cat in a closed cage, take a bowl containing boiling water and three drops of Respi Miloa and place it in front of the cage. Completely cover the cage and the bowl. Let your cat inhale the vapours for about 10 minutes. Repeat three times a day for three days.