Every animal is different. Some see results in a day or two, others can take a couple of weeks. Using the products as instructed you should notice an improvement within 10days. If you do not notice any improvement within 10 days then we recommend consulting with your vet. If at any time you feel that the irritation is worsening consult your vet immediately. Our customer service team are also always here to help and advise on the products and can be contacted on 0113 250 8957.