3 doctors weighed in:
What are symptoms of a real drug allergy?
3 doctors weighed in

Dr. James Fox
Internal Medicine - Allergy & Immunology
2 doctors agree
In brief: Rash and anaphylaxis
The most common allergic reaction to a drug is a rash.
In severe cases this is accompanied by breathing trouble and could even be life-threatening anaphylaxis. Stomach upset is a common side effect and is not likely to be a true allergy. However, it is still important to let your doctor know this.

In brief: Rash and anaphylaxis
The most common allergic reaction to a drug is a rash.
In severe cases this is accompanied by breathing trouble and could even be life-threatening anaphylaxis. Stomach upset is a common side effect and is not likely to be a true allergy. However, it is still important to let your doctor know this.
Dr. James Fox
Dr. James Fox
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