Impetigo

Impetigo causes blister‐like sores. The sores can fill with pus and form scabs, and scratching can spread the infection. Impetigo is caused by bacteria. It is contagious and usually occurs in children. It is the most common bacterial skin infection presented by children to primary care physicians. Treatment options include topical antibiotics (antibiotic creams), oral antibiotics (antibiotics taken by mouth), and disinfectant solutions. There is no generally agreed standard treatment, and the evidence on what intervention works best is not clear.
Good hygiene can help prevent impetigo, which often develops when there is a sore or a rash that has been scratched repeatedly.
Impetigo may affect skin anywhere on the body but commonly occurs around the nose and mouth, hands, and forearms, and in young children, the diaper area
The two types of impetigo are bullous impetigo (large blisters) and non-bullous impetigo (crusted) impetigo. The non-bullous or crusted form is most common. It's usually caused by S. aureus but can also be caused by infection with group A streptococcus. Non-bullous begins as tiny blisters, which eventually burst and leave small wet patches of red skin that may weep fluid. Gradually, a tan or yellowish-brown crust covers the affected area, making it look like it has been coated with honey or brown sugar.
Bullous impetigo is nearly always caused by S. aureus, which releases toxins that trigger the formation of larger fluid-containing blisters that appear clear, then cloudy. These blisters are more likely to stay longer on the skin without bursting.
Impetigo is easy to treat and serious complications occur infrequently.