Blisters appearing after fever and body pain, especially following intake of Dolo 650 (paracetamol) and an antibiotic, could be related to an allergic reaction or a side effect of the medications, but other causes are also possible. It is important to get a thorough medical evaluation to determine the exact cause and appropriate treatment.

1. Possible Causes of Blisters After Fever and Medication

   • Blisters may result from allergic reactions or rare but serious side effects like Stevens-Johnson syndrome linked to paracetamol or antibiotics.
   • Viral infections or fever-related skin conditions can also cause blistering.

2. Recognizing Allergic Reactions and Side Effects

   • Look for symptoms such as widespread rash, itching, swelling, blistering, or difficulty breathing, which suggest an allergic reaction.
   • Blisters with pus or rapid spreading require urgent attention.

3. Importance of Medical Evaluation

   • A doctor, preferably a dermatologist, should examine the skin and review your medication history to diagnose the cause accurately.
   • Early diagnosis is crucial to prevent complications.

4. Role of Blood Tests and Other Investigations

   • Blood tests can help identify infections or immune responses contributing to the blisters.
   • Additional tests like skin biopsy may be needed based on clinical findings.

5. Immediate Steps to Take

   • Do not stop any medication without consulting your doctor.
   • Seek emergency care if you experience difficulty breathing, swelling of face or throat, or rapid worsening of skin symptoms.

6. Treatment Options

   • Treatment may include antihistamines, corticosteroids, or switching medications under medical supervision.
   • Close follow-up is important to monitor progress.

7. Medical Specialties Involved

   • Consult a dermatologist or allergist for specialized assessment and management.

Please consult a dermatologist promptly to evaluate your symptoms and guide appropriate testing and treatment. If you experience severe symptoms, seek emergency care immediately.To narrow down potential causes, we will need some more information.Please tell me your age and gender.