Xem 1-11 trên 11 kết quả Skin irritation
  • Sensitive skin is becoming a common clinical condition that dermatologists should be prepared to recognize, understand, and treat. Subjects experiencing this condition report exaggerated reactions when their skin is in contact with cosmetics, soaps, and other substances, and they often report worsening after exposure to dry and cold climates. Sensitive skin and subjective irritation are widespread in western countries, but still far from being completely defined and understood.

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  • Also systemic. f In adults, associated with renal failure and immunocompromised state. Vesicles and bullae are also seen in contact dermatitis, both allergic and irritant forms (Chap. 53). When there is a linear arrangement of vesicular lesions, an exogenous cause should be suspected. Bullous disease secondary to the ingestion of drugs can take one of several forms, including phototoxic eruptions, isolated bullae, Stevens-Johnson syndrome (SJS), and toxic epidermal necrolysis (TEN) (Chap. 56).

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  • Hand eczema is one of the most common clinical conditions treated and evaluated both among general dermatologists and in dermatological departments. Hand eczema is the most common occupational skin disease and one of the most frequent occupational disorders overall. Hand eczema can be long lasting and incapacitating. Research within the last decades has expanded our knowledge significantly. This knowledge has yet to find its way into general dermatological textbooks. D.S.Wilkinson provides a thorough introductory chapter on the definitions and problems of classification.

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  • NO2 is a product of combustion. It is a precursor to ground-level ozone formation through photochemical reactions involving VOCs. NO2 causes a brown colour in the atmosphere at elevated concentrations. It reacts in the atmosphere with ammonia to form fine particulates, which reduce visibility and increase PM2.5 concentrations (Levelton Engineering Limited, 2000). NO2 irritates the mucous membranes in the respiratory tract.

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  • The
data
below
are
a
summary
of
the
findings.
Findings
found
at
the
 town
and
parish
level
are
included
in
the
pages
that
follow.

 
 Economic
Impacts:
44%
of
those
surveyed
had
the
livelihood
of
their
 household’s
primary
provider
impacted.
Nearly
a
quarter
report
needing
 but
not
receiving
economic
assistance
due
to
lost
income.
More
than
 10%
of
those
surveyed
were
considering
moving.

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  • Preservatives in cosmetics are the second most common cause of skin problems. They prevent bacteria and fungus from growing in the product and protect products from damage caused by air or light. But preservatives can also cause the skin to become irritated and infected.

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  • Figure 53-1 Atopic dermatitis. Hyperpigmentation, lichenification, and scaling in the antecubital fossae are seen in this patient with atopic dermatitis. (Courtesy of Robert Swerlick, MD; with permission.) Atopic Dermatitis: Treatment Therapy of AD should include avoidance of cutaneous irritants, adequate moisturizing through the application of emollients, judicious use of topical antiinflammatory agents, and prompt treatment of secondary infection. Patients should be instructed to bathe no more often than daily using warm or cool water, and to use only mild bath soap.

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  • Infections of the Ear and Mastoid Infections of the ear and associated structures can involve both the middle and external ear, including the skin, cartilage, periosteum, ear canal, and tympanic and mastoid cavities. Both viruses and bacteria are known causes of these infections, some of which result in significant morbidity if not treated appropriately. Infections of the External Ear Structures Infections involving the structures of the external ear are often difficult to differentiate from noninfectious inflammatory conditions with similar clinical manifestations.

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  • Copper fungicides are environmentally unfriendly. They are very toxic to fish and aquatic invertebrates, such as crab, shrimp and oysters. There are cases where most animal life in soil, including large earthworms, have been eliminated by the extensive use of copper-containing fungicides in orchards. It is strongly bioaccumulated and is very persistent. Once a soil is contaminated with copper, there is no practical way to remove it. The organic insecticide rotenone has been found to be toxic to pigs, rats and dogs and is is very toxic to fish. It causes skin and eye irritations.

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  • Electrolyte and acid-base abnormalities are commonly seen in pediatric practice. Patientsmay present with nausea, vom- iting, diarrhea, decreased intake of fluids, irritability, leth- argy, weight loss, dry skin and mucus membranes, elevated pulse, seizures and coma. The most common cause of acid- base disorder in children is metabolic acidosis secondary to diarrheal dehydration; however, affected children may present with a very complex clinical picture, and treating physicians should be familiar with the intricacies of their diagnosis andmanagement.

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  • a-Bisabolol is a natural monocyclic sesquiterpene alcohol. It has been used in cosmetics for hundreds of years because of its perceived skin-healing properties. a-Bisabolol is known to have anti-irritant, anti-inflammatory and antimicrobial properties. In precedent studies, we described how a-bisabolol exerts a selective pro-apoptotic action towards transformed cells [Cavalieri E et al.

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