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Merck
Manual
Consumer Version
The trusted provider of medical information since 1899
ENGLISH
FRANÇAIS (FRENCH)
Other Languages
Search
Search
A-Z
VIEW PROFESSIONAL VERSION
HOME
HEALTH TOPICS
Common Health Topics
Blood Disorders
Bone, Joint, and Muscle Disorders
Brain, Spinal Cord, and Nerve Disorders
Cancer
Children's Health Issues
Digestive Disorders
Disorders of Nutrition
Drugs
Ear, Nose, and Throat Disorders
Eye Disorders
Fundamentals
Heart and Blood Vessel Disorders
Hormonal and Metabolic Disorders
Immune Disorders
Infections
Injuries and Poisoning
Kidney and Urinary Tract Disorders
Liver and Gallbladder Disorders
Lung and Airway Disorders
Men's Health Issues
Mental Health Disorders
Mouth and Dental Disorders
Older People’s Health Issues
Skin Disorders
Special Subjects
Women's Health Issues
Resources
Videos
Figures
Images
Quizzes
Common Medical Tests
View All Resources
SYMPTOMS
General
Abdomen & Digestive
Bleeding
Brain & Nervous System
Chest & Respiratory
Children's Symptoms
Eye
Genital & Urinary
ALL SYMPTOMS >
EMERGENCIES
Cardiac Arrest
Choking
ALL EMERGENCIES >
DRUG INFO
Drug Information, Search
Drugs by Name, Generic and Brand
Natural Products, Search
Drug Interactions
Pill Identifier
Commonly searched drugs
Aspirin
Metformin
Warfarin
Tramadol
Lactulose
Ranitidine
RESOURCES
Abbreviations
3D Models
Audio
Common Medical Tests
Figures
First Aid
Images
Infographics
Lab Test
Medical Terms
Podcasts
Pronunciations
Quizzes
Self-Assessment Tools
Tables
The One-Page Manual of Health
Videos
Weights & Measures
NEWS
5 Ways to Fight America's No. 3 Cancer Killer
U.S. Extends Bans on Foreign Travel; Trump's Coronavirus Test Comes Back Negative
An Expert's Guide to a Safe Run in Cold Weather
Trump Declares Coronavirus a National Emergency, House Passes Relief Package
View All News >
View All News >
ABOUT
Overview
History
Editors and the Editorial Process
Publishing and Production Staff
Editorial Board
Contributors
Reviewers
Content Providers
Global Medical Knowledge 2020
FAQ
Contact Us
Brought to you by
About Merck
Merck Careers
research
WorldWideLink
Health Topics & Chapters
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
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Immune Disorders
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Allergic Reactions and Other Hypersensitivity Disorders
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Allergic Reactions and Other Hypersensitivity Disorders
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Overview of Allergic Reactions
Latex sensitivity
Causes
Symptoms
Diagnosis
Skin testing
Allergen-specific serum IgE tests
Provocative testing
Prevention
Environmental measures
Allergen immunotherapy (desensitization)
Treatment
Antihistamines
Mast cell stabilizers
Corticosteroids
Other drugs
Emergency treatment
Treatment of allergies during pregnancy and breastfeeding
Anaphylactic Reactions
Causes
Anaphylactoid reactions
Symptoms
Diagnosis
Prevention
Treatment
Angioedema
Acute angioedema
Chronic angioedema
Symptoms
Diagnosis
Treatment
Emergency treatment
Hereditary and Acquired Angioedema
Symptoms
Diagnosis
Treatment
Emergency treatment
Drugs to prevent attacks
Autoimmune Disorders
Causes
Symptoms
Diagnosis
Prognosis
Treatment
Drug treatment
Plasma exchange and intravenous immune globulin
Exercise-Induced Allergic Reactions
Diagnosis
Treatment
Food Allergy
Other reactions to food
Causes
Symptoms
Diagnosis
Prevention
Treatment
Mastocytosis
Types of mastocytosis
Symptoms
Diagnosis
Treatment
Physical Allergy
Causes
Symptoms
Diagnosis
Treatment
Seasonal Allergies
Symptoms
Diagnosis
Allergy testing
Treatment
Nasal symptoms
Eye symptoms
Allergen immunotherapy (desensitization)
Year-Round Allergies
Symptoms
Diagnosis
Allergy testing
Prevention
Treatment
Allergen immunotherapy (desensitization)
Surgery