Sinusitis is an irritation of the paranasal sinuses occurs due to viral, bacterial or fungal infections or allergic reactions. Some of the most common symptoms of sinusitis are nasal congestion, pain, tenderness, headache and more. Homeopathy alternative therapy is fast acting and effective in both acute and chronic sinusitis at Homeocare International. Homeopathic remedies can help strengthen the immune system with zero side effects.