A hard bump on top of the ear may be caused by boils, folliculitis, etc. Different diseases are treated differently, and commonly used therapeutic drugs such as mupirocin ointment and fusidic acid cream. You should consult a doctor and follow the doctor’s instructions. 1. Boils: usually caused by Staphylococcus aureus and so on, if occurring in the ear, it will be manifested as small nodule-like, so the hard pack on the ear may be a boil, which can be applied locally with mupirocin ointment. 2. Gram-negative bacterial folliculitis: this disease may occur in the ear, often manifested as yellow pustules on the erythema, and some patients may have nodules and abscesses, and there will be a hard bag on touching. You can apply fusidic acid cream externally, or take oral doxycycline and other drugs. There are many reasons why there is a hard bag above the ear, and it is recommended that patients seek timely medical clarification, targeted medication and treatment under the guidance of the doctor.