A big taste of filling after root canal treatment is a normal reaction, usually no special treatment is needed, but pay attention to oral hygiene. After root canal treatment for filling, the odor may be produced within a short period of time, which is a normal reaction, is the drug emitted, usually without special treatment. With the passage of time, the concentration of the medicinal flavor will gradually decrease, and the taste will become more and more faint, but usually pay attention to oral hygiene, and insist on gargling and brushing teeth. After root canal filling, the diet should be reasonable, and you should not bite too hard food in a short time, so as not to cause the filling to fall off and affect the effect of root canal treatment. If there are symptoms such as red, swollen and painful gums after the operation, it is considered to be caused by infection and inflammation, and you need to go to the hospital in time and follow the doctor’s instructions for treatment.