Sometime in our lifetime we experience rashes, which are generally caused by skin irritation from different sources. A rash is supposed to be a minor problem that may go away with home treatment. However, in some instances a rash does not go away or the skin may become so irritated that medical care is needed.
It usually starts within 48 hours after contact with the irritating substance that may cause mild redness or small red bumps. A more severe may cause swelling, redness and larger blister. It may also be a cause of viral infections, exposure to an insect or parasite. But, it may also be a sign of a chronic skin problem like eczema.
The term eczema refers to the disease in a form of dermatitis or inflammation of the epidermis. Like any other rash, eczema can be triggered by substances that come in contact with the skin, environmental allergens, changes in temperature or humidity, or even psychological stress, for some people lead to outbreaks of eczema.
No matter which part of the skin is affected, eczema is almost always itchy. Sometimes the itching will start before the rash appears. Affected areas usually appear very dry, thickened, or scaly. In fair-skinned people, these areas may initially appear reddish and then turn brown. Among darker-skinned people, eczema can affect pigmentation, making the affected area lighter or darker.
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Thanks for the information about it!