The initial symptoms of strongyloides hyperinfection syndrome may include fever, haemoptysis, and wheeze. A chest radiograph may reveal pulmonary infiltrates, which can represent a combination of oedema, haemorrhage, and pneumonitis.
As you bring the underlying hormonal disorder under control, you should see the dark patches fade. If your underarm skin remains dark, try applying over-the-counter topical creams containing lactic acid or glycolic acid, which can help to exfoliate the dark patches. Another cause of underarm darkening, especially in women with brown skin, relates to external assaults on the skin. For example, chemicals in underarm products, such as deodorants and antiperspirants, can produce an allergic or irritated reaction. Excessive rubbing can have a similar effect.
Here's a list of the most common causes. Dark circles run in families for a number of reasons. When blood passes through the veins under your eyes (where the skin is very thin), dark circles can appear. If your skin is more transparent (an inherited trait), the circles will appear darker.