Zinc supplementation in children 2 months to five years old appears to reduce rates of pneumonia.For people with low levels of vitamin C in their diet or blood, taking vitamin C supplements may be suggested to decrease the risk of pneumonia, although there is no strong evidence of benefit. There is insufficient evidence to recommend that the general population take vitamin C to prevent or treat pneumonia.For adults and children in the hospital who require a respirator, there is no strong evidence indicating a difference between heat and moisture exchangers and heated humidifiers for preventing pneumonia. There is no good evidence that one approach to mouth care is better than others in preventing nursing home acquired pneumonia. There is tentative evidence that laying flat on the back compared to semi-raised increases pneumonia risks in people who are intubated. Management
Antibiotics by mouth, rest, simple analgesics, and fluids usually suffice for complete resolution. However, those with other medical conditions, the elderly, or those with significant trouble breathing may require more advanced care. If the symptoms worsen, the pneumonia does not improve with home treatment, or complications occur, hospitalization may be required. Worldwide, approximately 7–13% of cases in children result in hospitalization, whereas in the developed world between 22 and 42% of adults with community-acquired pneumonia are admitted. The CURB-65 score is useful for determining the need for admission in adults.
Cardiofaciocutaneous (CFC) syndrome is an extremely rare genetic disorder, and is one of the RASopathies. It was first described in 1986.It is characterized by the following:

Distinctive facial appearance
Unusually sparse, brittle, curly scalp hair
A range of skin abnormalities from dermatitis to thick, scaly skin over the entire body (generalized ichthyosis)
Heart malformations in over 75% of patients (congenital or appearing later), especially an obstruction of the normal flow of blood from the lower right ventricle of the heart to the lungs (valvar pulmonary stenosis)
Growth delays
Feeding problems associated with severe gastroesophageal reflux disease (GERD)
Foot abnormalities (extra toe or fusion of two or more toes)
Intellectual disability
Failure to thrive

Presentation
Head
Individuals with the disorder usually have distinctive malformations of the craniofacial area including an unusually large head (macrocephaly), prominent forehead, and abnormal narrowing of both sides of the forehead (bitemporal constriction); The nose can be upturned and short with a low nasal bridge; and large ears that are abnormally rotated toward the back of the head. In many cases, affected individuals also have downward slanting eyelid folds, widely spaced eyes, drooping of the upper eyelids, inward deviation of the eyes, and other eye abnormalities including absent eyebrows and eyelashes. Gastrointestinal system
Genetic
Costello and Noonan syndrome are similar to CFC and their phenotypic overlap may be due to the biochemical relationship of the genes mutated in each syndrome. Genes that are mutated in all three of these syndromes encode proteins that function in the MAP kinase pathway. Mutations that cause CFC are found in the KRAS, BRAF, MEK1, and MEK2 genes.