Impetigo is a highly contagious skin infection that is caused by bacteria, usually Staphylococcus aureus or Streptococcus pyogenes. It is most commonly seen in children, but can affect people of any age. Symptoms of impetigo include red sores, blisters, and crusty patches on the skin that may ooze a yellowish fluid.
The main cause of impetigo is coming into contact with bacteria that exist on the skin and in the environment. These bacteria are often passed on through skin-to-skin contact with an infected person, or through contact with contaminated items such as towels, clothes, and surfaces. People with weakened immune systems are more susceptible to developing impetigo, as are those who have cuts or scrapes that allow bacteria to enter the skin more easily.
In some cases, impetigo can be caused by an allergic reaction to certain chemicals, such as those found in certain soaps and detergents. It can also be caused by an infestation of mites, such as scabies or lice. Finally, it can be caused by prolonged exposure to wet or damp conditions, which can create a moist environment that allows bacteria to thrive.
In most cases, impetigo can be treated with antibiotics, either taken orally or applied directly to the affected area. Keeping the area clean, dry, and free from contact with other people is also important.