Espresso coffee is a small 1 to 2 oz. shot of pressure-brewed coffee using between 6.5 and 7.5 grams (about 1 Tablespoon) of finely ground coffee. Brewing takes about 25 to 30 seconds.
In children, the most common causes of scalp sores are ringworm and other fungal diseases that can be easily transmitted from one child to another, this is why children affected with scalp sores should be monitored and quarantined from other children because they may infect them.
There are a number of causes for an itchy scalp 1  : Dandruff Dandruff is cited as the most common cause of an itchy scalp which is triggered by the excessive shedding of the flakes of dead cells owing to an exposure to chilly winters or blazing summers, fungal or yeast infections and a high production of sebum by sebaceous cells.