With the advent of summer, mosquitoes, flies, cockroaches and other insects may enter the external ear canal, which can cause severe ear pain and tinnitus by crawling around in the external ear canal. If improperly handled is likely to cause otitis externa or even deafness, once you find a mosquito into the ear, do not pull out the ear, so as not to “force” the mosquito deep into the ear canal, should promptly make the correct first aid measures or go to the hospital. First of all, you should stay calm and not panic. Can be funnel connected to the skin tube, the warm water into the ear, then tilt the head and pour out, small bugs will flow out with the water, and then use a cotton ball to gently wipe the water in the ear. Or put 3-5 drops of oily liquid such as glycerin, olive oil, sesame oil, etc. to drown them, and after 2-3 minutes, tilt your head to the side of the affected ear, and the worms will trickle out with the oil. However, when taking the worms, be careful and do not poke and prod them indiscriminately to avoid damaging the eardrum. When the first aid measures are still ineffective, make sure to turn the affected ear downward and go to the hospital immediately. Be careful not to allow water in the ear for 3 days afterwards, as the damage caused by insect scratching can easily lead to infection after contact with contaminants. If the pain in the ear does not improve, antibiotics may be added to control the inflammation. In summer, when traveling and sleeping in the wild, place a cotton ball in the outer ear canal before going to bed to prevent unwanted visitors from invading.