COMMON TREATMENT.--Two teaspoonfuls of spirits of nitre, one teaspoonful paregoric, one wineglassful of camphor water. Mix thoroughly, and give a teaspoonful in half a teacupful of water every two hours. To relieve the cough, if troublesome, flax seed tea, or infusion of slippery-elm bark, with a little lemon juice to render more palatable, will be of benefit. _CHICKEN POX._ DEFINITION.--This is a contagious, eruptive disease, which resembles to some extent small-pox. The pointed vesicles or pimples have a depression in the center in chicken-pox, and in small pox they do not. SYMPTOMS.--Nine to seventeen days elapse after the exposure, before symptoms appear. Slight fever, a sense of sickness, the appearance of scattered pimples, some itching and heat. The pimples rapidly change into little blisters, filled with a watery fluid. After five or six days they disappear. HOME TREATMENT.--Milk diet, and avoid all kinds of meat. Keep the bowels open, and avoid all exposure to cold. Large vesicles on the face should be punctured early and irritation by rubbing should be avoided. _HOME TREATMENT OF DIPHTHERIA._ DEFINITION.--Acute, specific, constitutional disease, with local manifestations in the throat, mouth, nose, larynx, wind-pipe, and glands of the neck. The disease is infectious but not very contagious under the proper precautions. It is a disease of childhood, though adults sometimes contract it. Many of the best physicians of the day consider true or membranous croup to be due to this diphtheritic membranous disease thus located in the larynx or trachea. SYMPTOMS.--Symptoms vary according to the severity of the attack. Chills, fever, headache, languor, loss of appetite, stiffness of neck, with tenderness about the angles of the jaw, soreness of the throat, pain in the ear, aching of the limbs, loss of strength, coated tongue, swelling of the neck, and offensive breath; lymphatic glands on side of neck enlarged and tender. The throat is first to be seen red and swollen, then covered with grayish white patches, which spread, and a false membrane is found on the mucous membrane. If the nose is attacked, there will be an offensive discharge, and the child will breathe through the mouth. If the larynx or throat are involved, the voice will become hoarse, and a croupy cough, with difficult breathing, shows that the air passage to the lungs is being obstructed by the false membrane.