Nummular eczema, also known as discoid eczema or nummular dermatitis, is a skin condition characterized by inflamed patches that resemble coin-shaped discs or plaques. These patches typically appear on the lower legs, forearms, hands, and trunk, sparing the face and scalp. One of the most common symptoms experienced by individuals with this condition is intense itchiness, which can cause significant discomfort. It is important to note that eczema is not contagious and is often a long-term condition. In females, nummular eczema usually develops during the teenage years or early adulthood, while males tend to develop it later in life.
Symptom: Scales or Crusts
It can be challenging to distinguish between discoid eczema and skin infections. Individuals with eczema may experience the presence of approximately 50 round or oval raised plaques with well-defined edges. Some of these patches may exhibit scales or develop a yellowish crust. Conversely, if the affected areas are due to a skin infection, individuals are likely to observe blisters filled with pus, sores resembling cold sores, and streaks of redness spreading across the skin. Infections are also accompanied by additional symptoms such as fever, pain, flu-like symptoms, or swollen lymph nodes or tonsils. Eczema, on the other hand, does not typically manifest these symptoms.
Symptom: Itchiness
One of the primary indicators of discoid or any other type of eczema is itchiness, which can significantly disrupt sleep and daily routines. It is not uncommon for individuals to also experience a burning or stinging sensation. Medical professionals strongly advise against scratching for eczema patients due to the potential risks it poses. Scratching can lead to infection, further redness and irritation, and intensify the itching sensation. Moreover, continuous scratching can permanently alter the skin’s texture and result in lichenification, a condition characterized by thickened, leathery outer skin. Additionally, scratching increases the likelihood of scarring.