A bump has grown on the external genitalia, and the vaginal discharge is also yellow. What is the illness?

Patient's question:

Unmarried
Detailed medical condition and consultation purpose: My colleague has developed a lump on her vulva. It doesn't hurt when touched, but it does cause some pain when touched. Her discharge is also yellow. She also experiences menstrual pain. What could this be? The vulva is not itchy. The doctor said it might be vaginitis—is it very serious? Why would a lump form? Thank you

Doctor's answer:

Based on your description, it is likely that the inflammation in your external genital area is caused by an infection. You can adopt an integrated treatment approach both internally and externally. For your condition, it is recommended to take Amoxicillin and Clavulanate Potassium dispersible tablets orally and apply an anti-inflammatory ointment such as Jiujiu Pityapsin externally to reduce the inflammation. An integrated treatment approach will yield better results. Additionally, it is advised not to consume irritating foods and to pay close attention to maintaining good hygiene in your external genital area.