Is it permissible to pray, fast, and engage in intercourse when blood and a yellowish discharge appear after using internal medical suppositories?

If doctors confirm that the bleeding is due to suppositories and not menstrual blood, then it is istihadah (definition) (non-menstrual vaginal bleeding). In this case, the woman must purify herself from it and perform ablution (wudu') for each prayer after its time has begun. Her husband is permitted to have intercourse with her. However, if the woman doubts whether it is menstrual blood or istihadah, then it is considered menstrual blood.