The best medicines in these cases are a combination of cod-liver oil and the wine of iron, given in the following manner:--Put a tea-spoonful of wine of iron into a wine-glass, half fill the glass with water, sweeten it with a lump or two of sugar, then let a tea-spoonful of cod-liver oil swim on the top; let the child drink it all down together, twice or three times a day. An hour after a meal is the _best_ time to give the medicine, as both iron and cod-liver oil sit better on a _full_ than on an _empty_ stomach. The child in a short time will become fond of the above medicine, and will be sorry when it is discontinued. A case of rickets requires great patience and steady perseverance; let, therefore, the above plan have a fair and long-continued trial, and I can then promise that there will be every probability that great benefit will be derived from it. 278. _If a child be subject to a scabby eruption about the mouth, what is the best local application_? Leave it to nature. Do not, on any account, apply any local application to heal it; if you do, you may produce injury; you may either bring on an attack of inflammation, or you may throw him into convulsions. No! This "breaking-out" is frequently a safety-valve, and must not therefore be needlessly interfered with. Should the eruption be severe, reduce the child's diet; keep him from butter, from gravy, and from fat meat, or, indeed, for a few days from meat altogether; and give him mild aperient medicine; but, above all things, do not quack him either with calomel or with grey-powder. 279. _Will you have the goodness to describe the eruption on the face and on the head of a young child, called Milk-Crust or Running Scall_? Milk-crust is a complaint of very young children--of those who are cutting their teeth--and, as it is a nasty looking complaint, and frequently gives a mother a great deal of trouble, of anxiety, and annoyance, it will be well that you should know its symptoms, its causes, and its probable duration.