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.
The most common causes of scalp sores in adults are: hair follicliculities, where the hair follicles are going to get infected and filled with pus, they are going to cause an itchy feeling and also painful sores . Eczema is also responsible for causing scalp sores in adults.
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.