Generally a dip is applied every 7-14 days. It is extremely important to follow label directions when diluting dips. Pay special attention to the armpits and groin areas. Avoid getting any into the eyes, mouth, or onto other mucous membranes. The spray is allowed to air dry.
Foams work well in cats that are frightened by spray bottles.
Sprays and foams need to be applied according to label directions. It remains effective after swimming and normal bathing. Most other flea sprays require daily dosing and are inactivated by bathing or swimming. They are frequently helpful in removing flea dirt and scale from the skin which makes it easier to tell if fleas return in the future. Some types of flea collars sterilize adult fleas and can help prevent build up of flea populations in the house.