Blisters are little blemishes or boils caused by heat, excess moisture, or damage skin cells. They most commonly occur on the feet as a result of wearing shoes which pinch, but they can also occur in the mouth when you bit or cut the inside of your cheeks or lips. They can also develop when you eat or drink something that is too hot and damages your skin cells. Thankfully, there are many home remedies for blisters which can help them to heal faster.
An abscess is pus that collects in pockets in many different places around the outside of the body. It is usually a thick fluid that contains lots of white blood cells, dead tissue, and bacteria. The pus may be yellow or green, have a bad smell, or appear to be thick. It is usually the result of a small infection, which causes the immune system to set off white blood cells and other antibodies to combat the infection. Sometimes, this causes tissue to die, which forms a cavity. The cavity becomes larger and larger and sometimes the pus from the infection cannot escape.