With us in the tick risk has increased significantly. Therefore, we are of Advantix, switched to Scalibor. So we had until now spared the constant application. Here in the vicinity of the dog wears for years the collars of Scalibor, and had until now only three ticks of which one knows. Anyone who has a dog allergy, can switch to a Vergleichspräperat. In most cases, the allergy refers to the carrier, and not the drug. So a dog was our neighbor.