White vaginal discharge can sometimes be normal, but when it continues for many years along with pain, it needs proper medical evaluation to identify the exact cause. Common reasons may include recurrent vaginal infection, fungal infection, bacterial imbalance, cervical infection, hormonal changes, pelvic infection, or other gynaecological conditions. Since you have already taken several medicines without much improvement, it is important not to continue self-medication repeatedly without a clear diagnosis. You should consult an experienced gynaecologist for a detailed examination and, if needed, tests such as vaginal discharge examination, urine tests, ultrasound, or cervical screening to find the underlying cause. In the meantime, maintain good intimate hygiene by keeping the area clean and dry, wearing loose cotton undergarments, and avoiding scented soaps, vaginal washes, or harsh products, as these may worsen irritation. Drink enough water, eat a balanced diet, and avoid unnecessary antibiotic use unless prescribed. If you also have itching, burning, bad smell, lower abdominal pain, irregular bleeding, fever, or pain during urination or intercourse, inform the doctor clearly, as these details can help identify the cause more accurately. Long-standing symptoms should not be ignored, but with proper evaluation and targeted treatment, many women experience significant improvement.