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What is the difference between a rash and hives

A 47-year-old member asked:
Dr. Robert Jackson
Dermatology 43 years experience
blisters: With poison ivy you have blisters.

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A 22-year-old male asked:
Dr. Lynne Weixel
Clinical Psychology 36 years experience
Immune system alert: For some reason (often it is mysterious even with best efforts to identify the agent) some people's immune systems go into an emergency alert mode and... Read More
Dr. John Chiu
Allergy and Immunology 57 years experience
Many causes: Depends on whether it is short-lived or chronic. If it is under 6 weeks duration , they can be caused by food or drug allergy and even a viral infec... Read More
A 50-year-old member asked:
Dr. Payam Rafat
Podiatry 22 years experience
Many possibilities: There are many types and causes of skin rashes. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, vi... Read More
Dr. Joram Seggev
Specializes in Allergy and Immunology
Need more info: Rashes are a general term for any lesions that affect the skin and are not growths. Hives (in medical terms) are urticaria; they usually present as re... Read More
Dr. John Chiu
Allergy and Immunology 57 years experience
Chronic hives: Hives usually gets worse at night regardless of the cause. Try taking antihistamine from 2 to 4 doses a day (higher than the dose for hay fever) and i... Read More
A 36-year-old member asked:
Dr. Donald Shenenberger
Dermatology 25 years experience
Depends: Without seeing you it is not possible to say for sure. This could be anything from eczema to an allergic reaction. Seeing your primary care doctor mig... Read More
A 45-year-old member asked:
Dr. Duane Gels
Allergy and Immunology 37 years experience
Chronic urticaria: 'Keep' is the operative word here. Is the duration now 4-6 weeks? If so, you have chronic hives, and the issues change from finding a 'cause' (unusual... Read More
A 21-year-old female asked:
Dr. Linda Green
Pediatric Allergy and Asthma 45 years experience
Itching: There are numerous reasons for itching from dry skin to thyroid problems and more. Often a cause is not identified. See an allergist or dermatologist ... Read More
A 37-year-old female asked:
Dr. Ashu Syal
Pediatric Nephrology and Dialysis 30 years experience
Allergy: Try changing to hypoallergenic detergent to wash your sheets. See a allergy specialist
A 26-year-old male asked:
Dr. Erine Kupetsky
Family Medicine 16 years experience
Hives: Hives (urticaria) is common and sometimes you may never find the cause. Causes can be food allergies, medications, problems w your liver, infections i... Read More
A 30-year-old member asked:
Dr. James Ferguson
Pediatrics 46 years experience
Hard to tell: Proper assessment will require some history, an exam & possibly lab work. This could be as simple as a transient virus or a more worrisome auto-immune... Read More
A 30-year-old male asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Terminology: Urticaria is an other way to say hives. So you can not have urticaria without hives. For good health - Have a diet rich in fresh vegetables, fruits, w... Read More

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