Index
What Are Drug Reactions?
Drug reactions are unwanted or abnormal responses to medications. They can range from mild rashes or itching to severe, life-threatening reactions affecting multiple organs.
What Causes Drug Reactions?
- Allergic reactions to medications (antibiotics, NSAIDs, anticonvulsants)
- Side effects related to drug dose or metabolism
- Interactions between multiple medications
- Previous history of drug allergies
What Are the Common Symptoms?
- Skin rash, hives, or itching
- Swelling of lips, tongue, or face
- Fever or flu-like symptoms
- Nausea, vomiting, or diarrhea
- Difficulty breathing or wheezing in severe reactions
- Severe reactions (anaphylaxis or Stevens-Johnson syndrome) in rare cases
How Are Drug Reactions Diagnosed?
- Based on recent medication history and timing of symptoms
- Physical examination and symptom assessment
- Blood tests or allergy testing in selected cases
- Online GP consultations can review medications, assess symptoms, and advise on next steps
How Long Do Drug Reactions Last?
- Mild reactions may resolve within hours to days after stopping the drug
- Severe reactions may persist longer and require medical intervention
Are Drug Reactions Contagious?
No. Drug reactions are not contagious.
How to Feel Better and Manage Drug Reactions
Self-Care at Home:
- Stop the suspected medication (only after GP advice)
- Use antihistamines for mild itching or rash
- Apply soothing creams for skin reactions
- Monitor for worsening symptoms
Treatment from a GP:
- Prescriptions for antihistamines, corticosteroids, or other medications
- Guidance on alternative medications if needed
- Referral to specialists for severe or unusual reactions
When Referral Is Needed:
- Severe or persistent reactions
- Involvement of multiple organ systems
- Uncertain cause or life-threatening reaction
When to Seek Urgent Medical Help
Seek urgent care if:
- Difficulty breathing, swallowing, or speaking
- Swelling of face, lips, or throat
- Rapidly spreading rash, blistering, or skin peeling
- High fever, severe pain, or collapse
Call emergency services immediately in suspected severe drug reaction or anaphylaxis.
How Dr.Online UK Can Help
We offer:
- Same-day online GP appointments
- Assessment and advice for drug reactions
- Prescriptions for symptom management if appropriate
- Referral to specialists for severe or complex cases
