<s>[INST] I had a shot of lidocaine and my upper mouth around tooth number 6 to finish a root canal that was started by my dentist there was a small abscess but unfortunately time ran out to finish the job ever since I have had a lot of sinus pain on that same side of my face even going up to my forehead my eyes look very droopy puffy underneath them just wondering if this is an infection or something else he just got me on clindamyacin to help reduce anything that may be wrong with infection [/INST] Hi. Welcome to Chat Doctor . I have gone through your query and can understand your concerns. As per your complaint it seems that you have infection in the sinuses leading to Sinusitis, and it has been due to proximity of the sinus floor to the roots of the upper molars and at times the roots can lie within the sinus. It can cause infection in sinuses secondary to infection in tooth. Clindamycin will help in reducing infection, but you need a proper management of Sinusitis and also consult an Endodontist and get a proper Root Canal treatment done. I would suggest you to consult an Otolaryngologies and get evaluated and a thorough clinical evaluation and investigations like PNS view x-ray or MRI scan can help in diagnosis and treatment can be done accordingly. You can be advised a course of antibiotics, anti-inflammatory painkiller like Ibuprofen, decongestants like Pseudopod Chat Doctor. . You can also be advised decongestant nasal sprays containing Xylometazoline or Oxymetazoline. Avoid spicy and chilled foods. Do warm compresses around nostrils. Hope this helps. Regards. </s>