Dog still has worms a week after deworming

The dog still has worms after a week of deworming. It may be because there are more parasites in the body. You can do another internal deworming for the dog. The effect will be better. Then do it once a month for three consecutive days. Months are enough.
Tips:
Under normal circumstances, dogs can be dewormed every three months. However, if the dog has more parasites in the body or has not eaten regularly recently, For clean food, you need to increase the frequency of deworming in the body according to the dog's condition.