It sounds uncomfortable to have a dry cough persisting despite taking medications for several days. Since you have been using Zifi CV (an antibiotic), Trump D syrup (likely a cough suppressant or expectorant), and Maintain LC (a probiotic), but your cough has lasted for 3 days, it’s important to reassess your condition.

• A dry cough lasting several days can be due to viral infections, allergies, or sometimes bacterial infections that may need different treatment.
• Antibiotics like Zifi CV (containing cefixime) are effective only if a bacterial infection is present; if your cough is viral, antibiotics won’t help.
• If your symptoms worsen, you develop fever, difficulty breathing, chest pain, or the cough persists beyond 7 days, you should see a pulmonologist (lung specialist) or an ENT (ear, nose, and throat) doctor for further evaluation.
• Meanwhile, keep hydrated, avoid irritants like smoke, and rest your voice.
• Do not stop or change medications without consulting your doctor.

If you want, I can explain more about when antibiotics are needed or how to manage a dry cough safely. Please consider consulting a specialist soon to ensure appropriate care.To narrow down potential causes, we will need some more information.Please tell me your age and gender. I understand you've been experiencing a dry cough for the past few days.