Frontline Spot on Small Dog (2-10kg) x 3 Pipettes For Fleas & Ticks Treatment Frontline Spot on Small dog is used as both a treatment & prevention of infestation from fleas & ticks. Frontline Spot on Small dog is also used as part of a treatment for dogs suffering from Flea Allergy Dermatitis. Frontline Spot on Small dog is also used to control infestations with trichodectes canis biting lice. Frontline Spot on Small dog can be used on all dogs over 8 weeks of age & weighing over 2kg, Larger dogs may require larger treatments. see Frontline spot on Medium, Large & Extra large.