Salicylic Acid, 10 grains. Vaseline, 1½ drachms. Carefully mix. Apply with camel’s-hair brush. As it is very difficult to destroy the eggs of these parasites, it is advisable, even after the irritation has ceased, to continue the ointment two or three times a week for some time, so as to destroy the parasites as they hatch. =Ear, Cyst in the Flap of=: _Symptoms_: Dogs with long ears are more subject to this complaint than others. It is generally caused by a bruise of some kind. A swelling forms on the inside of the flap of the ear, often extending all over the surface. It is very painful, and the dog will hold the head on one side, and cry out when touched. _Treatment_: Often, if attended to immediately after it occurs, the swelling may be dispersed by hot poppy-head fomentations, made by boiling a couple of crushed poppy-heads in a quart of water for ten minutes, and then straining. If the swelling does not disappear in a couple of days, it should be freely opened on the inside at the lowest part—that is towards the point of the flap. The wound must be kept open by being plugged by a piece of lint, or inserting a small tube, which should be fixed in with a stitch. The wound must be kept open for some days, or else the fluid will collect again. It is advisable in these cases to make the dog wear a cap as depicted in the illustration, and if the inside of the ear sweats at all, dust it freely with powdered boracic acid three or four times a day. =Ear, Growths in=: _Symptoms_: Cartilaginous growths occasionally form in the canal of the ear, quite blocking up the passage. They cause great pain. The dog holds his head on one side, and is constantly scratching his ear, and crying. [Illustration: A cap to keep the ears at rest when required. It should not be put on in cases of canker.] _Treatment_: The only treatment is to remove the growths by operation, which should be done as follows: Chloroform having been given, the growth should be cut out as low down as possible with the points of probe-pointed scissors. Then the roots should be thoroughly scraped with a curette, and afterwards thoroughly cauterised with the thermocautery. The dog suffers a good deal of pain for some days after the operation, but it may be relieved by pouring a few drops of the following lotion, which should be slightly warmed, into the ear three or four times a day. _Recipe: The Lotion_: Laudanum, 1 drachm. Carbolic Acid, 20 drops. Almond Oil, 1 ounce. Carefully mix. =Ear, Polypus in=: _Symptoms_: This is a small pear-shaped growth with the pedunculated root attached in the canal of the ear. _Treatment_: This growth is best removed by torsion, as follows: Seize the growth with a pair of forceps, and twist it round and until it comes off. No further treatment is required, except keeping the ear clean for a few days with some boracic acid lotion. =Ear-Flap, Scurfiness of=: