Thanks for asking the query,
Nausea , weakness , feeling of fatigue , dizziness
are common side effects after dental surgeries . donot panic follow the instructions given by the Dentist
After surgeries healing process starts and there is increased salivation due to which you can feel nauseating .
Take complete course of antibiotic and analgesic
Take saline water gargles 3-4 times a day .
mouthwash gargles twice daily it will prevent infection and promote healing .
If not relieved you can take an antiemetic drug .
Hope this helps out.