Most medications do not prevent you from donating blood. Common medications such as those used to control blood pressure, birth control pills and over-the-counter medications do not affect your eligibility. If you have recently taken antibiotics, you must have completed the course prior to donating.
Yes, a tooth infection can cause a headache. Also, be aware that certain sinus conditions can mask as tooth problems.
Best Answer: I'm glad you're getting the tooth pulled today. A bad tooth can cause a lot more than headaches or eye pain. Research has shown that it can lead to heart attack and stroke as well as headache/eye pain. I had a systemic infection as a result of seven infected teeth and the best decision I could have made was to get them out.