Hello My Mouth And Throat Is Full With Small White

hello my mouth and throat is full with small white spots that are very difficult to get rough while brushing and they cause bad breath for me and making very difficult to open my mouth. also my mouth uses to be so tasteless. I am so embrassed in many occasions please is this possible for to be cured? if so please what are medications to take. Before I took drugs like fluconazole and its related entities.