Being bitten by bees can reduce swelling and pain by applying ice, pulling out the stinger, neutralizing the venom, and applying local medicine. 1. Ice: If a pregnant woman is stung by a bee, she can apply ice to reduce the swelling and pain, and the ice should not be applied for more than 15 minutes, so as not to cause local frostbite. 2. Pull out the venomous stinger: If a pregnant woman is stung by a bee, she needs to check the injured area carefully. If there are black spots on the skin, it may be that the stinger of the bee still remains in the skin, and it should be pulled out. 3. Neutralize the venom: the venom of bees is acidic, you can use sodium bicarbonate solution or ammonia and other weakly alkaline liquid to apply wet compresses on the wound; the venom of wasps or hornets is alkaline, you can use boric acid powder to apply wet compresses on the affected area. 4. Local medication: local redness and swelling can be dissipated with glycerite lotion; if the redness and swelling are serious with blisters and oozing, 3% boric acid solution can be used to absorb the oozing and relieve the swelling and pain. It is recommended to go to the regular hospital, under the guidance of the doctor, actively cooperate with the treatment, so as not to cause adverse effects on the body, the local should pay attention to clean, dry, to avoid triggering bacterial infections, to eat a light diet.