Accidentally swallowed a little urine is not important, can rinse mouth in time, generally will not be harmful to the body.
Urine contains a variety of metabolic products, the overall perspective of drinking some urine does not produce too much effect. You can drink more water to speed up the excretion or go to the relevant hospital for examination and sterilization of the mouth. After drinking water can be appropriate exercise, so as to promote blood circulation, accelerate the production of urine, urine out of the body.
If the psychological burden is large, you can take oral diuretic drugs, such as furosemide or hydrochlorothiazide, but must be taken under medical advice.
Accidentally swallowing a little urine is not going to affect the body, and you can drink a lot of water and urinate quickly at a later stage.
In addition, in daily life should also pay attention to diet, try to eat more light food, do not arbitrarily eat unknown food, to avoid the impact on the body.