Depending on the cause of pink discharge, the treatment options may also vary. But usually, one experiences this color of discharge towards the end of their periods when they go through light bleeding, which is considered normal unless accompanied by other signs. The best thing to do is to make sure you don't indulge in sexual activities, wear loose-fitting clothes, change to cotton underwear, stay hydrated, and don't use anything to clean the area other than normal water. If the infection causes it, stop indulging in sexual activities, for you might experience pain during sex. The rest depends on the symptoms you feel, so treatment can only be given after a proper diagnosis.