The rash from eczema and scabies can look alike, but they have very different causes and treatments. Scabies comes from a mite that burrows into the skin, and it's very contagious. Eczema is a chronic condition that can't spread from person to person. Treatment is important for both eczema and scabies.
Unfortunately, in practice, scabies is largely diagnosed based only on the clinical picture, which may lead to a misdiagnosis. A broad differential diagnosis of scabies can include atopic dermatitis (AD), allergic contact dermatitis, nummular eczema, arthropod bites, dermatitis herpetiformis, etc. (1, 7).
Ringworm is a fungal infection — whereas scabies is caused by mites — and it is easily identified by the appearance of a characteristic red, ring-shaped rash, most commonly affecting the feet, groin and scalp.
Folliculitis. This is an infection and inflammation of the hair follicles in the skin. It causes a pimple-like rash that may resemble a scabies rash. However, the intense itch that is a characteristic of scabies is not present in folliculitis.
For example, scabies, an infection caused by a mite that gets under the skin, can cause itching and raised red spots too. 4 Unlike hives, however, scabies bites tend to localize at skin folds, i.e., between fingers, at the flexion points over your wrists, elbows, and knees, and along the genitalia.
Scabies typically starts with itching and a pimple-like rash, often in areas around your wrists, finger webs, elbows, armpits, waist, knees, ankles, or groin.
You might also see tiny red or black specks of blood or excrement on your bedding or smell a sweet, musty odor. You can tell you have scabies because you develop a rash that tends to itch only at night.
Clinically, it presents in three forms: classic, nodular, or a contagious crusted variant also called Norwegian scabies. Sarcoptes scabiei resides in the dermal and epidermal layers of humans as well as animals. Scabies occurs worldwide and is a common skin condition.
The scabies rash takes the form of small, red bumps that may look like pimples, bug bites, hives or knots under the skin. You might be able to see the burrow tracks created by the mites, which appear as raised lines of tiny blisters or bumps. Some people develop scaly patches that resemble eczema.
In addition, when treating infants and young children, scabicide lotion or cream also should be applied to their entire head and neck because scabies can affect their face, scalp, and neck, as well as the rest of their body.
Scabies mites do not survive more than 2-3 days away from human skin. Items such as bedding, clothing, and towels used by a person with scabies can be decontaminated by machine-washing in hot water and drying using the hot cycle or by dry-cleaning.
Scabies mites are very contagious. They often spread from person to person while they are sleeping in the same bed, or during other close contact. Scabies should be treated quickly to keep the mites from spreading.
The most common symptoms are: Blisters or bumps — Pink, raised bumps with a clear top filled with fluid are likely to appear on areas of the body where scabies have infested. Itching — A sensation of a foreign object crawling on the skin will create constant and sometimes severe itching, especially at night.
Scabies -- or human itch mites -- are eight-legged critters that burrow into the upper layer of your skin. There, they lay eggs. Once the eggs hatch, the mites climb to the surface of your skin, where they spread to other parts of your body. They can also spread to other people.
Permethrin is safe and effective when used as directed. Permethrin kills the scabies mite and eggs. Permethrin is the drug of choice for the treatment of scabies. Two (or more) applications, each about a week apart, may be necessary to eliminate all mites.
Scabies is highly contagious and is spread by close contact. If untreated, it can last indefinitely. Scabies is not caused by poor hygiene.
Wash all clothes, bedding, and towels that you used in the 4 to 5 days before you started treatment. Use hot water, and use the hot cycle in the dryer. Another option is to dry-clean these items. Or seal them in a plastic bag for 3 days.
The most common symptoms of scabies are intense itching and a pimple-like skin rash. The scabies mite usually is spread by direct, prolonged, skin-to-skin contact with a person who has scabies. Scabies occurs worldwide and affects people of all races and social classes.
Summary. Scabies is caused when the female Sarcoptes scabiei mite burrows into your skin and lays eggs. Scabies is most commonly passed through prolonged skin-to-skin contact but can also be spread through infested bedding, clothing, furniture, or towels.
Scabies is a common disease and typically described as a skin condition with sparing of face and scalp in adults. However, crusted scabies is not conventional scabies. It can also affect the scalp.
Vaseline or petroleum jelly alone cannot kill the scabies mites. 5% to 10% Sulfur when mixed with petroleum jelly and applied over the skin, effectively manages scabies mites.