Impetigo symptoms does not show until 4 to 10 days after the exposure to the bacteria. So people can easily pass this skin infection on to others without realising that they are infected.
The three types are called impetigo contagiosa, bullous impetigo and ecthyma.
Bullous impetigo symptoms:
The bullous impetigo symptoms often caused by the staphylococcus aureus bacteria begin with fluid-filled blisters, which usually occur on the trunk or on the arms and legs. The blisters may quickly spread, before bursting after several days to leave a yellow crust which heals without scarring. The blisters are painless, but the area of skin surrounding them may be itchy. As with non-bullous impetigo sympotms, it is important that you do not touch or scratch the affected areas of the skin. The blisters, which last longer than the impetigo contagiosa infection, can be accompanied by fever, diarrhea and body weakness.
Impetigo contagiosa symptoms:
The non-bullous impetigo symptoms begin with red sores seen with the streptococcus strain of bacteria usually around the nose and mouth. Sometimes other areas of the face and the limbs can be affected. Those affected may have swollen lymph nodes around the area of infection. The sores quickly burst leaving thick, yellow-brown golden crusts. After the crusts dry, they leave a red mark that heals without scarring. The sores are not painful, but they may itchs. It is important not to touch, or scratch, the sores because this can spread the skin infection. Impetigo contagiosa is the most common type.
Ecthyma is a more serious form of this skin infection. The infection spreads deep into the dermis or second layer of skin. It starts out with painful, fluid-filled blisters that progress to deep ulcers, primarily affecting the legs and feet. A yellow-gray crust thickly covers the infected area. Swollen lymph nodes can accompany this type of infection. These deep blisters usually result in scarring.