Can a tooth ache cause a headache? headache started after eating. which otc med is best?

Toothache-Headache: Toothache can possibly lead to a headache, especially if it is coming from an infection in the tooth. Otc medication that is likely to be most helpful would be ibuprophen (advil, motrin) but this is only a temporary fix, you need to get to your dentist and determine the cause of the toothache and have it addressed asap.

Yes, referred pain: The term referred pain (heterotopic) refers to any spontaneous pain that is felt in the area other than its true source. The reason for this pain is that the original source of pain input produces a sensitization in inter-neurons responsible of heterotopic pain. Toothache is a source, headache is a site. Best "otc medication" is to see your dentist. Blocking the tooth pain will eliminate the ha.

Yes: Yes you can get headache referred from teeth ache, see your dentist to treat the cause instead of treating the symptom..

Require evaluation: Toothache may mean fractured or malposed tooth. More probably, however, means infected tooth. Toothache can manifest as headache, as can infected sinus. Pain killer will take edge off temporarily, but when pain killer wears off pain will return, usually worse than before as infection intensifies and spreads. May need to see both dentist and physician. Call now.

See a dentist ASAP: Even though the tooth ache may be related to sinus or another source, i would start first by seeing a dentist whom can x-ray and evaluate the tooth and surrounding gingival tissue and bone.