The ringing, buzzing, crackling, or hissing sound you observe internally in one or both ears is due to Tinnitus. The gravity of the condition may vary from less irritating to a very severe pain. Tinnitus may be precipitated by allergy, high or low blood pressure mainly on blood circulation problems. A tumor, diabetes, thyroid problems, injury to the head or neck, along with adverse effects of medications ends up with tinnitus condition. Medications that require to be administered with caution comprise the anti-inflammatory medicines, antibiotics, sedatives, antidepressants, and aspirin. The ear is ringing when colds and flu, noisy environments and allergic reactions are within the vicinity. Other tinnitus elements deal with high salt intake, sugar, artificial sweeteners, alcohol, various medications, tobacco, and caffeine.