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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Coumadin And Plavix Cause Skin Rash When Body Exposed To Sun?

Hello, I am on 8 mg of Coumadin and 75 mg of Plavix per day. Can sun exposure cause a problem with either of these medications? I did get a purplish rash on my right arm the last time I swam for an hour in the sun. However, it is healing quickly. And, I am not sure if it was caused by the sun exposure.
Sat, 1 Sep 2018
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Dermatologist,  's  Response
Hi,

Yes, it could be a photoallergic light eruption secondary warfarin. I suggest you to use a broad spectrum sunscreen throughout the day. Reapply every 2-3 hours. In addition I suggest you to apply a moderately potent topical steroid e.g mometasone furoate cream, twice daily for the rashes. You may also take an OTC oral antihistamine e.g Tab cetrizine once a day for symptomatic relief from itching.

Hope I have answered your query. Let me know if I can assist you further.
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Can Coumadin And Plavix Cause Skin Rash When Body Exposed To Sun?

Hi, Yes, it could be a photoallergic light eruption secondary warfarin. I suggest you to use a broad spectrum sunscreen throughout the day. Reapply every 2-3 hours. In addition I suggest you to apply a moderately potent topical steroid e.g mometasone furoate cream, twice daily for the rashes. You may also take an OTC oral antihistamine e.g Tab cetrizine once a day for symptomatic relief from itching. Hope I have answered your query. Let me know if I can assist you further.