L.R.
Are you treating with BOTH Motrin and Tylenol? If he's not over 99 he does not have any fever and I wouldn't use either until you see a doctor first. As others say, it could be allergies, could be sinus, but continuing to give the medications is masking the real problems. And Tylenol and Motrin can both upset the stomach more! You're treating what could be allergies, an infection or a stomach virus or flu with treatment for fever -- which he does not have. Stop the meds and see the doctor.