Checkup Introduction. People make appointments to see their doctor for many different reasons. Some only go to the doctor when they are experiencing a new problem or concern and are looking for a specific diagnosis or treatment. Others see their doctor at more regular intervals for ongoing follow-up of a chronic problem or disease.
Donât blame it on the sunshine. Most people believe these yellow stains are a result of sweat. After all they only occur in the armpit area. In addition to this, they seem to be ubiquitous on summer clothing. It just has to be the sweat that causes it.
Armpit Rash Causes. An armpit rash may be caused due to several different factors. Three of the most common causes of an armpit rash include friction, elevated heat and exposure to allergens. 1  The underarm skin is quite sensitive and can be easily irritated via friction. Heat rash is a condition caused due to elevated perspiration which results in the blockage of the sweat ducts occurring beneath the skin. 2  The sweat trapped under the skin then causes the formation of a bumpy armpit rash, which can occasionally be painful.