A 47-year-old member asked:
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can too much caffeine cause a skin rash?

1 doctor answer
Dr. John Chiu
Dr. John Chiu answered
57 years experience Allergy and Immunology
No, but....: It would not but may heighten your sense of any degree of itching and when you scratch your skin, a rash if born.
Answered on Sep 9, 2013

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A 28-year-old male asked:
Dr. Steven Machtinger
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Quite rare: I don' recall ever seeing someone allergic to caffeine. As each stimualnt drug is quite different chemically from others an allergy to all stimulants ... Read More
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anal rash: Rash around your anus is more likely from some local process than from caffeine ingestion.
A 48-year-old member asked:
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Its a stimulant: You can have an allergy to caffeine which presents with hives or rash after ingesting. My guess is that if you only get a rash on a hot day it is not ... Read More
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Probably withdrawal : If you have recently decreased or eliminated consumption of caffeine, the withdrawal of caffeine could certainly cause headaches. You do not need to ... Read More
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