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Severe body rashes after CT contrast.
Stomach ulcer and infection for 2 weeks. Taking medicines prescribed by a gastroenterologist for 2 weeks, but abdominal pain did not improve. Gastroenterologist advised CT scan of the abdomen. During CT scan, contrast injection was given. About 1 day after the contrast injection, severe rashes developed all over the body. Rashes have continued for 4–5 days and are very severe/widespread. Consulted both dermatologist and gastroenterologist and took prescribed medicines, but rashes have not improved. Abdominal pain is now relieved and there is no current significant stomach pain. The main problem now is severe widespread body rashes that started shortly after the CT contrast injection.
Answers (23)
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A widespread rash starting about a day after iodinated CT contrast is typically a delayed (non-immediate) hypersensitivity reaction to the contrast agent, and it usually settles over one to three weeks with antihistamines and topical steroids, sometimes needing a short oral steroid course. Because you were also taking several new medicines for the ulcer at the same time, a drug rash from one of those (or from a proton pump inhibitor or antibiotic) is an equally important possibility that needs to be sorted out.
Next Steps
Make a written list of every medicine and its start date and show it to your dermatologist so the culprit drug can be identified and stopped. A non-sedating antihistamine by day, a sedating one at night, liberal emollients and a mild topical steroid usually control it; a short tapering course of oral steroids is sometimes needed for severe widespread rash, but only under supervision. Get a CBC with eosinophils, LFT, RFT and CRP to make sure there is no systemic involvement, and ask for the contrast reaction to be documented in writing so premedication can be given before any future scan. You are welcome to consult me on Practo or at Synergy Miraj for follow-up.
Health Tips
Go to hospital immediately if you develop fever with the rash, blisters or skin peeling, sores in the mouth or eyes, facial or lip swelling, breathlessness, or yellow eyes.
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Hi
A skin rash after a CT scan with iodine contrast can be an allergic-like hypersensitivity reaction that appears immediately (within an hour) or as a delayed reaction (from a few hours up to a week later)
It looks like delayed reaction to u
Mild rashes: Minor redness, flushing, or slight itching usually go away on their own without medicine. Cool compresses and soothing lotions can help.
Moderate rashes: Widespread hives or intense itching are often treated with oral or injected antihistamines (like cetirizine or diphenhydramine).
Severe or complex rashes: Spreading blisters, painful spots, or swelling require urgent medical evaluation.... Steroids may be needed
What medication did dermatologist give you
Next Steps
feel free to consult me on practo for further evaluation and management
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If you would like to discuss your concern in more detail, please feel free to contact me on WhatsApp at nine one one nine two five five six nine nine. Alternatively, you can connect with me through the Practo app for a detailed consultation
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It’s delayed contrast-media reaction.
Most delayed contrast reactions are self-limited,
but severe or progressive widespread eruptions require reassessment to exclude a severe cutaneous adverse rxn.
Next Steps
CBC with differential/ or eosinophils, LFT, RFT, electrolytes
and urine R/M to look for systemic involvemen.
Tab LCZ 5 mg/BD
Health Tips
Go to the emergency department immediately if there is difficulty breathing, facial or tongue swelling, hypotension, blistering or peeling skin, skin pain, mucosal ulcers, eye involvement, high fever, or rapidly progressive rash.
these features require exclusion of a serious drug or contrast rxns.
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If there is no blistering and only rash then it could be due to iv contrast some person are allergic to it and causes rashes all over body. Look for signs like wheezing or swelling of face and lips. If not present take anti histamine and topical steroid for resolving issue. It would persist until the contrast traces are in ur body.
Next Steps
wait for few days it will resolve in few days
Health Tips
need further evaluation or advise , kindly opt for consultation
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You are having a late allergic reaction to the contrast injected. Do not worry, mostly it is self limiting.
Did you get your serum creatinine and blood urea levels before CT , if yes please share.
It will help us assess you further.
Next Steps
If the symptoms persist and rash continues for long , please consult immediately.
Health Tips
Apply soothing body lotion, have plenty of water.
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