An inflamed blister that forms beneath the epidermis after vigorous or repeated rubbing of the skin, e.g., on the toes or heels during sports activities. a collection of fluid, usually serum, between the layers of the skin, causing an elevated lesion.Caused by friction, burns, local allergic responses, e.g. stings.nless a blister is painful or interferes with function because of its size, it should not be punctured. If puncturing is required, it should be done aseptically, with the skin left in place. A sterile pressure bandage should then be applied.
Unstable angina (UA) is a type of angina pectoris that is irregular.It is also classified as a type of acute coronary syndrome. It can be difficult to distinguish unstable angina from nonâQ-wave myocardial infarction.nstable angina (UA) is a type of angina pectoris that is irregular.
Angina is pain, discomfort or pressure in the chest, and doctors usually describe it as chronic stable angina or unstable angina. 1  Chronic stable angina is a form of chest discomfort that happens when your heart is working hard and needs more oxygen, such as during exercise. 2  The pain goes away when you rest.ngina is pain, discomfort or pressure in the chest, and doctors usually describe it as chronic stable angina or unstable angina. 1  Chronic stable angina is a form of chest discomfort that happens when your heart is working hard and needs more oxygen, such as during exercise. 2  The pain goes away when you rest.