Doctor insights on:
Difference Between Scabies And Dermatitis
Very different.: Atopic dermatitis is an "inside job" - it usually starts in childhood and involves the skin folds in a symmetrical pattern. Contact dermatitis is an "outside job" - something you're allergic to comes in contact with your skin and causes the rash in an asymmetrical distribution. ...Read more
Closely related: Atopic dermatitis: localized skin reaction related to overreaction of the body immune system to external allergenic substance in contact with skin, eczema dermatitis: skin disorder related to abnormal collagen fibers that is manifested by dry, eczematous skin with recurrent exacerbations mostly related to localized or systemic triggering factors. ...Read moreSee 1 more doctor answer
What causes the itch: Atopic dermatitis is an itch that rashes. Contact dermatitis is a rash that itches. Ad is caused by an internal itch that becomes a rash only after you scratch the skin over and over again. Cd is caused by an external chemical that soaks into the skin and your immune system sends an army of cells to kill all the skin cells that are contaminated with that chemical. That irritates nerves and itches. ...Read more
Difference between atopic dermatitis n irritating dermatitis? How to differentiate between these two?
General v. localized: Atopic dermatitis is a chronic condition that is generalized over the entire skin surface, but usually most obvious in the "flexor" areas (crooks of elbows & knees, neck, underarms). Contact dermatitis is localized to the area of contact, and is often streaky in appearance due to the effect of the contact brushing against the skin surface. Atopy also tends to be symmetrical; contact is not. ...Read more
Sometimes overlap: Seborrheic dermatitis of the scalp can often overlap with scalp psoriasis in a disease termed sebopsoriasis. Both conditions are from scalp inflammation. The treatments are often quite similar using topical steroid solutions/shampoos/foams and keratolytic (scale removing) shampoos and topicals. See a dermatologist to see if you have one or the other or the combined form (sebopsoriasis). ...Read more
Genetics: Eczema /atopic dermatitis usually inherited. The parents have a history of asthma and allergies. Eczema - immune system problems and a weak skin barrier. Weak skin barrier can come from a mutation in the filaggrin gene. Seborrheic dermatitis cause unknown perhaps due to a common fungus. Primarily affects areas of skin with oil glands. Red bumps on face, neck. Also "cradle cap" yellow scalp flakes. ...Read more
Differences: Eczema is a chronic inflammatory skin condition due to genetic defects in the proteins and lipids supporting the skin layer/barrier called the epidermis. Ringworm is a skin infection due to a fungus. Psoriasis changes the life cycle of skin cells causing cells to build up rapidly on the surface of the skin. Extra skin cells form thick, silvery scales and itchy, dry, red patches, that are painful. ...Read more
HUGE: Ringworm is a skin infection spread from a person or a cat. The source is usually a kitten. Typically it is scaley with a clearing in the center, slightly itchy, and slowly spreading. Impetigo spreads rapidly, usually the lower face, with honey-colored crusts and maybe blisters. The skin is puffy & sore. Impetigo is transmitted from another person, an infection by strep or staph bacteria. ...Read moreSee 1 more doctor answer
Pubic Lice vs razor: Rash. Blue spots may show on the skin where pubic lice (phthirus pubis )have been feeding. Nits (eggs) may be found on the pubic hairs. The lice’s saliva can cause a person to become very itchy, which is usually worse at night. Sores can develop when the skin is scratched.**razor burn can occur after shaving. The skin becomes red ; inflamed ; may sting or itch. ...Read more
Can look similar: To patients, both are dry, flaky rashes that can appear at any age. Psoriasis is more specific, and can involve arthritis. Eczema can simply over dry skin, from irritation, or atopic, e.g. associated w/ asthma and allergies. Psoriasis is oilier, more yellow; outside knees+elbows. Eczema the inside elbows knees. Both on scalp of babies. Eczema really itches. Psoriasis only sometimes. ...Read more
Is there a way to distinguish the difference between atopic dermatitis scabies and pityriasis rosea?
Psoriasis & seb derm: Both psoriasis and seborrheic dermatitis cause redness and scaling of the scalp. Both can be itchy. Psoriasis usually has thicker plaques covered by a silvery white adherent scale. Seborrheic dermatitis has a yellowish, more flaky, greasy looking scale. Both can occur together. Psoriasis is usually more resistant to treatment than seborrheic dermatitis. ...Read moreSee 1 more doctor answer
Ulcers vs itchy rash: Herpes rash is little blisters that break open to form an ulcer and is tender when touched. It is caused by herpes type 1 & type 2. Scabies is caused by a "mite", a bug, that tunnels under the surface of the skin. Scabies is not painful but itches like nothing else. Scabies doesn't form ulcers. Herpes is often on the face, genitals, or fingers. Scabies is often on the hands, arms, waist, or legs. ...Read moreSee 1 more doctor answer
Few similarities.: Roseola is a viral infection affecting infants and young children. It involves a pinkish-red skin rash and a high fever that typically starts as the rash is resolving. Psoriasis consists of well-defined red plaques with silvery scales. There are many kinds of eczema, which is characterized by a diffuse reddish scaly itchy rash in various locations (depending on the type and severity). ...Read more
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