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Doctor insights on: Sulfa Allergic Reaction

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Severe sulfa allergic reaction. Taking benedryl and prednisone. Not getting any better. Broke out in blisters all over body, red skin with pain stings?

Severe sulfa allergic reaction. Taking benedryl and prednisone. Not getting any better. Broke out in blisters all over body, red skin with pain stings?

Go to the er: There can be a very severe reaction that is a skin emergency. The most significant variant is called toxic epidermal necrolysis (ten). Another slightly less severe condition but on the same continuum is stevens-johnson syndrome. It is important with your current symptoms you get evaluated asap. The most common cause of both of these is drug reactions. ...Read more

Dr. John Chiu
2,491 doctors shared insights

Allergies (Definition)

Allergies occur when your immune system is triggered by envirionmental factors it should ignore--for example, pollen in the air, or dander on a cat or dog--and creates cells to fight against them. An allergic reaction typically causes itching, congestion, or drainage, and ...Read more


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Had an allergic reaction to Sulfa. With the shot and meds the dr gave me, the rash is looking better. How long will it take it to go away completely?

Had an allergic reaction to Sulfa. With the shot and meds the dr gave me, the rash is looking better. How long will it take it to go away completely?

Usually days: In rare instances, weeks, please avoid prolonged sun exposure till the rash disappears completely, tell every healthcare worker you deal with that you allergy to sulpha till sorted out, it will be written on your medical record ...Read more

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I took sulfa for two weeks ending three days ago and I strayed breaking out in hives yesterday. Could this be an allergic reaction?

I took sulfa for two weeks ending three days ago and I strayed breaking out in hives yesterday. Could this be an allergic reaction?

Sulfa allergy: Yes, it is possible to experience an allergic response a few days after completing a course of sulfa. Please notify the prescribing practitioner without delay. Take benadryl (diphenhydramine) 25 mg every 4 hours for four doses. Then see how it is. ...Read more

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Could this itchy red rash be an allergic reaction to sulfa?

Could this itchy red rash be an allergic reaction to sulfa?

Sulfa allergy: Drug allergic reactions can take on many forms including: hives, swelling, blistering, dry itchy patches, non itchy red flat or slightly raised areas. To determine if a rash is related to a medication typically requires reviewing when a medication was started, when the rash started, other medications taken, infection being treated etc. There is no allergy test for sulfa. ...Read more

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Could my itchy red rash all over be an allergic reaction to sulfa?

Could my itchy red rash all over be an allergic reaction to sulfa?

Sulfa allergy: Allergic reactions to sulfa are fairly common. If a person develops a rash while taking a sulfa based medication, then it is likely the sulfa is to blame. Unfortunately, there is no blood test or allergy skin test to confirm sulfa allergy. ...Read more

Dr. John Chiu
1,005 doctors shared insights

Allergic Reaction (Definition)

Allergic reactions are sensitivities to substances, called allergens, that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be inhaled into the ...Read more