When bitten by ants, after regular treatment, the swelling can usually be reduced in about 2 to 5 days. After an ant bite, the ant acid in its body comes into contact with human skin, which can easily cause redness, swelling and blistering of the skin, etc. Alkaline substances such as soapy water can be used to clean the wound, or localized anti-allergy treatment can be carried out under the guidance of a physician in order to reduce the discomfort of the wound. If the recovery is good, the swelling can be gradually reduced in 2 to 3 days; if the situation is more serious, the recovery time may take about 5 days. Due to the different species of ants, there are differences in the amount of residual toxin after biting the skin. If the amount of residual toxin is high, the swelling of the skin will be heavier and the treatment time will be longer; if the amount of residual toxin is low, the swelling of the skin will be lighter and the swelling will be reduced in a shorter period of time. After being bitten by ants, you can go to the hospital for examination, make a clear diagnosis, and carry out targeted treatment in a timely manner, so as not to delay the condition, in order to prevent the emergence of other skin problems.