<s>[INST] My son has been sick for 2 months. He had 2 cases of strep throat, within 2 months. (He apparently has had mono, but the doctor said it was not in last 3 months. Had blood test to determine this, along with many other abnormalities that could be present). When he got sick 2 months ago, his symptoms were sore throat, fatigue, and have now have developed into severe headaches, that come and go daily, fatigue, and nausea, sometimes with stomach pain. He no longer has sore throat. He has been on 3 different antibiotics, and just finished a 3 day zithromyacin 2 days ago. He had an MRI, a week ago, on his head , since he is having so many headaches. Nothing came of it, except that it showed he had a sinus infection, thus the z-pack antibiotic. Not sure what to do or what type of doctor I should have him see, for the symptoms he is still experiencing. Any advice? [/INST] Hi. Thanks for the query. Well sore throat, fatigue and headache can be seen when there is sinus infection and the cause is that sore throat can occur due to post nasal Chat Doctor. .Also, headache can be due to pressure in the sinuses as there are large sinuses resent behind the eyes and forehead region. So the symptoms can be probably related to sinus infection or sinusitis. His antibiotics should be continued and along with it anti-inflammatory painkillers like Ibuprofen can help. Use decongestant nasal spray containing Xylometazoline and saline nasal rinses. Doing steam inhalation and using a humidifier can help. Avoid air-conditioned atmosphere and cold and spicy foods. Take sufficient rest. If the symptoms does not improve in a week you can consult an ENT Physician and get his reports checked along with a clinical examination. Hope this helps. Regards. </s>