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In 2006, the United States Food and Drug Administration revoked its approval of hydroquinone for over the counter preparations, warning that it may cause cancer or have many other detrimental effects. [12] The use of hydroquinone skin-whitening products may be toxic, harmful, or lethal for humans. [12]
Hydroquinone is used as a topical application in skin whitening to reduce the color of skin. It does not have the same predisposition to cause dermatitis as metol does. This is a prescription-only ingredient in some countries, including the member states of the European Union under Directives 76/768/EEC:1976. [23] [24]
Several chemicals have been shown to be effective in skin whitening, while some have proven to be toxic or have questionable safety profiles. This includes mercury compounds which may cause neurological problems and kidney problems. [1] In a number of African countries, between 25 and 80% of women regularly use skin whitening products. [2]
Notably, tick-borne Lyme disease may present with a bullseye rash, which develops within 30 days of the bite, the Mayo Clinic explains. Other symptoms: Tick bites on their own aren't necessarily ...
The table also shows that: positive predictive values lie between 0.59-55%, i.e. far below 100%; positive as well as negative predictive values vary with the population tested; a drug may cause more than one type of SCARs disorder or interact with more than one HLA serotype to cause SCARs; and the level of susceptibility to a drug varies ...
Most often, a heat rash will take the form of small red bumps in splotches around your body. They can itch and be filled with fluid. Heat rashes usually appear suddenly within a few hours of ...
It is often mistaken as a rash that forms on sweaty skin that is constantly being rubbed, but in reality, it is a breakout of acne mechanica. The term "acne" itself describes the occurrence in which hair follicles (also known as pores) in the skin get clogged by oil, dead skin cells, dirt and bacteria , or cosmetic products and create a pimple.
The rash and other symptoms typically occur 24 to 48 hours after the exposure; in some cases, the rash may persist for weeks. [2] Once an individual has developed a skin reaction to a certain substance it is most likely that they will have it for the rest of their life, and the symptoms will reappear when in contact with the allergen.