Late reaction, persistent reaction and doubtful allergic reaction: The problems of interpretation
The standard method of patch test reading is to read the test site for any positive allergy at 48hr and then again at 72/96 hr. A late reading on the seventh day is also advised to exclude the irritant reaction (IR) and to notice some delayed development of allergic reaction. However, multiple visit...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2009-01-01
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| Series: | Indian Journal of Dermatology |
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| Online Access: | http://www.e-ijd.org/article.asp?issn=0019-5154;year=2009;volume=54;issue=1;spage=56;epage=58;aulast=Sarma |