Can a sinus infection cause pain/burning on the top back of your head because? I had a bad sinus cold that started last tuesday. Monday I went on meds

Let your dr know. Referred pain patterns from the sinuses can go to different parts of the head / scalp. It's best to contact your doctor and let them know what you're experiencing. They may need to give you something that will help you feel better, plus document your symptoms. Hope you feel better soon!