How can you tell if its a migrane or sinus? i have pressure over my right eye. any home remedies i might be able to try? antibiotics aren't working.

CAT scan: Sometimes it can be confusing. A cat scan will demonstrate sinusitis, but if mild, will be unlikely cause of head pain, and most sinus issues cause facial pain. The right eye pressure could be migraine, but also ocular like glaucoma, so this needs eval. Ask if the antibiotics are required now. Avoid self treatment, as you need precise diagnosis.