Dear Dr Rotar, for quite some time I have had a strange inflammation of my throat, nose and eye, all only on the right side. Because of this I constantly have a dry cough, a metallic taste in my mouth and bleeding from my right nostril. Since the condition does not improve after all the examinations and taking various medicines and antibiotics, I wondered whether an infection from the teeth could be the cause. Some time ago I had severe pain due to an infection behind the lower right wisdom tooth. I clean my teeth regularly and use mouthwash, especially since that infection. Could you confirm whether such an infection could originate from the teeth, and what should I do to determine whether this is really the cause? P.S. This is the person whose upper central incisor you repaired not long ago because the post was too small. Best regards from Poland