dear Dr.I am a student.my ear accidentally got injured , blood came out after removing earwax 2days ago.i used spirit swab and iodine solution.i have to sit for exam the day after tomorrow,so i have to study at home,and don t want to go to clinic.Now,i can t accept phone call any longer as something odd feels in my ear.Please give some advice what drugs to buy so that i can treat myself.