The etiology of dry socket after tooth extraction is still controversial, perhaps due to the lack of interest in researching this pathology, which heals spontaneously in a period of two weeks on average. Various proposed models have unsuccessfully attempted to explain the causal mechanisms of the lack of blood clots inside the dental socket. The main symptom and true protagonist of this pathology, that is, the intense pain perceived by 100% of the patients who have suffered this postoperative complication of extraction, has been underestimated by dental professionals for decades. Treatment orientation should focus on immediate pain relief. Thirty-seven patients were treated with a conservative but intensive treatment of the dental alveolus by washing with 3% hydrogen peroxide. The cavity is immediately filled without compression with gauze soaked in the purest eugenol whose objective is to eliminate pain definitively two minutes after starting the protocol. The simplified treatment protocol with eugenolate gauze allows immediate cessation of pain and eliminates the need for analgesic-antiinflammatory medication. Eugenol gauze is changed periodically until definitive symptomatic remission in approximately 2 weeks.