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How to tell the difference between poison ivy rash and bacterial infection

A male asked:
Dr. John Froude
Infectious Disease 53 years experience
Probably poison ivy: did he have fever? if no more likely PI does he have underlying illness such as diabetes? if not more likely PI Is the lesion diffusely red spreading ... Read More
Dr. Christopher Cirino
Infectious Disease 23 years experience
Not likely bacterial: To differentiate cellulitis from rhus (poison ivy) : Cellulitis is. Condition that.presents with fever and systemic symptoms and is characterized as a... Read More
Dr. Robert Buzzeo
Specializes in Pediatrics
Questionable rash : If the rash has clear blisters, general redness, seems to be getting worse as the days progress - it may be likely poison ivy, especially with a histo... Read More

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A 49-year-old member asked:
Dr. John Chiu
Allergy and Immunology 57 years experience
Poison ivy itches: You get a lot of itching and blisters from poison ivy but not from a bacterial infection. Also poison ivy is not associated with pus.
A 47-year-old member asked:
Dr. Lily Hwang
Pediatric Allergy and Asthma 18 years experience
Blisters resolved: Most people initially get swelling or itching at the place of contact within hours then in the next weeks (1-3 weeks) they may have blister forming th... Read More
A 46-year-old member asked:
Dr. Rudolph Johnstone
Pediatric Allergy and Asthma 35 years experience
Poison ivy: If it is severe you doctor can prescribe Prednisone by mouth in addition to oral antihistamine.
A 39-year-old member asked:
Dr. Heidi Fowler
Psychiatry 25 years experience
Colloidal oatmeal : Bath. There are specific products that you can buy that will wash the urushiol off. Some options of treating poison ivy include calamine lotion, oatme... Read More
A 33-year-old member asked:
Dr. Reid Blackwelder
Family Medicine 37 years experience
Usually a day or so: The chemical in the poison ivy plant that causes the problem in many people usually takes a day or two before it fully erupts. Often, people feel some... Read More
A 28-year-old female asked:
Dr. Mark Taylor
Dermatology 47 years experience
Poison Ivy is bad: Poison ivy can be treated with I.M. Kenalog, but I prefer a course of oral prednisone because it does not supress the adrenal gland as long as a Kenal... Read More
A 34-year-old member asked:
Dr. Stevan Cordas
Internal Medicine 57 years experience
Poison ivy: Yes, it may not be enough but it is a good cream.
A 28-year-old female asked:
Dr. John Chiu
Allergy and Immunology 57 years experience
Possible: especially if you had scratched the area heavily. I would give it at least 3 months to see if the pigment would return before doing anything about it... Read More
A 36-year-old male asked:
Dr. Nayla Mumneh
Allergy and Immunology 29 years experience
Hair loss: hmm, if it has been years, it may be hard to regrow the air in those spots, usually an injectable steroid can remedy the problem, but the time elapsed... Read More

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