A sweat rash is typically characterized by a red rash on the skin that is sore, inflamed, and has an itchy and/or burning sensation to it. In addition, the skin is usually quite moist, and the surface of the skin may be broken in some areas. This type of rash is normally found in areas of the body that are most likely to trap perspiration or sweat and heat such as the skin folds. This type of rash may also develop on skin areas that experience repeated friction. Therefore, the skin areas on the body that are most often affected by this common skin rash are: under the breasts, the folds in the groin region, the back of the elbows, behind the knees, and of course, under the arms. Very active individuals such as those who participate in sports on a regular basis, people who tend to always sweat excessively even in non physical activities, as well as overweight individuals, are the group of people that tend to be affected most by this type of rash. However, this skin rash can occur with any person in any age group.
This sweat skin rash develops because the yeast that is normally present on the skin in the correct amount combines with the excess moisture caused by sweating and then starts to grow in population. This excess yeast on the skin causes the sweat skin rash problem.
Treatment will prevent the spread of the rash and development of a fungal skin infection. Treatment involves keeping the skin cool and dry and perhaps the use of anti-fungal medication to reduce the candida yeast population to a normal value.
The rashes pictures page on this website provides additional skin rash information.
More information on rashes caused by heat and weather: