I'm sorry to hear about the painful, reddish cyst developing after your injection. This could indicate an infection or an abscess at the injection site, especially since it has persisted for ten days without improvement despite antibiotics (Ciflox, which contains ciprofloxacin) and pain relief (Combiflam, containing ibuprofen and paracetamol).

Here are important steps you should take:

• Seek prompt evaluation by a doctor, preferably a dermatologist or an infectious disease specialist. They can examine the cyst to determine if it requires drainage or a different antibiotic treatment.
• Avoid squeezing or trying to drain the cyst yourself, as this can worsen infection.
• Continue to monitor for signs of worsening infection such as increased redness, swelling, fever, or spreading pain.
• Maintain good hygiene around the area and keep it clean and dry.

Since your current medications have not improved the condition, professional medical assessment is essential to prevent complications.

If you experience severe pain, fever, spreading redness, or any difficulty moving the leg, seek emergency care immediately.

Please consult a specialist doctor as soon as possible for appropriate treatment.To narrow down potential causes, we will need some more information.After getting an injection in your buttock 10 days ago, you've developed a painful, reddish cyst about 2 inches wide. You've tried Ciflox 500 mg and Combiflam every 10 hours for the pain, but it's not getting better. Please tell me your age and gender so I can provide better guidance.