What is the bacterial skin infection characterized by isolated pustules that become crusted and can rupture?

The bacterial skin infection characterized by isolated pustules that become crusted and can rupture is indeed impetigo. Impetigo is caused primarily by staphylococcal or streptococcal bacteria and is highly contagious. It typically manifests as red sores or blisters that develop into pustules. Once the pustules burst, they can ooze and form a yellow-brown crust. The condition is more common in children but can affect individuals of any age, particularly in warm, humid conditions where skin breaks can become infected.

In contrast, eczema is a chronic inflammatory condition that leads to dry, itchy skin but does not present with pustules that rupture. Folliculitis can present with pustules as well, but it specifically involves inflammation of the hair follicles and doesn't typically lead to widespread crusting. Psoriasis is an autoimmune condition that results in red, scaly patches on the skin, often distinguished by silvery scales, but it is not characterized by pustules or crusting in the same manner as impetigo. Understanding these distinctions helps clarify why impetigo is the correct identification in this context.