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.
Signs of gum infection caused by a wisdom tooth include: 1  red, inflamed gum near the wisdom tooth. 2  swelling. 3  pain. pus coming from the gum.  the lymph glands under the jaw become swollen and 1  sore. it may become difficult to open the mouth and to swallow.  fever.