Infection. We both are 23 years old.

JAI HIND DOCTOR I(Male)/63 Kg and my partner(Female)/65 kg had a unprotected sex 4-5 days earlier. From the very next day of the intercourse she is having a yellowish color fluid discharge from her private part with little swelling and burning sensation but i am completely fine and isn't experiencing any problem. We both had done intercourse 8-9 times earlier also and are not at or have been at any time of medication earlier. This is the for very first time she is experiencing such issue. There might be a chance of sexually transmitted infection . INTERCOURSE was done on her risk free days .She wasn't on her periods. Though i am completely fine but PLEASE suggest medicines for both of us for safety purpose.We both are really worried Doctor. We both are 23 years old.