Hihy Health
Encyclopedia

Food Allergy

#food allergy, #allergy, #hives, #anaphylaxis, #allergy and respiratory medicine

If you develop hives or shortness of breath after eating a certain food, it may be a food allergy, which can be life-threatening. Please do not take it lightly; be sure to see an allergist or pulmonologist for accurate testing. If you have difficulty breathing, throat tightness, or feel faint after eating, call 119 (Korea's emergency number) immediately, and use your epinephrine auto-injector if one has been prescribed.

2026-06-26

Glaucoma

#glaucoma, #optic nerve, #intraocular pressure, #visual field loss, #normal-tension glaucoma, #how to use eye drops, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness

Glaucoma is a disease in which the optic nerve inside the eye is gradually damaged by high intraocular pressure or other factors, causing the visual field to narrow progressively. There are almost no symptoms in the early stage, so detection can be delayed, and rather than a cure, lifelong consistent management is important. Detecting it early through regular checkups and starting treatment is the best way to help prevent blindness.

2026-06-26

Headache

#Headache, #Migraine, #Tension-type headache, #Cerebral hemorrhage, #Stress, #Sleep disorder, #Caffeine, #Neurology, #Head pain, #Splitting headache, #Pain at the back of the head, #Weakness in arms or legs, #One-sided weakness, #Seeing double, #Overlapping vision, #Trouble falling asleep, #Waking up often, #Not sleeping deeply

Headache is a common symptom that almost anyone can experience, but it can also be a sign of a brain condition or a nervous system problem. If you find yourself relying too heavily on pain relievers to get rid of headaches, or if headaches are interfering with daily life, please don't try to judge the cause yourself — see a medical specialist.

2026-06-26

Heat Waves and Heart Health

#heat wave, #sudden cardiac death, #heat stroke, #heat-related illness, #heart attack, #angina, #cardiac arrest, #arrhythmia, #hydration, #summer health, #dizziness, #feeling faint, #unsteadiness, #vision going dark, #fainting, #loss of consciousness, #syncope, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation

Extreme heat raises the risk of angina, heart attack, and cardiac arrest by increasing heart rate, promoting blood clotting, and placing added strain on the heart. Older adults age 65 and older, people with cardiovascular disease, and those with chronic conditions such as high blood pressure or diabetes need to be especially careful. On days when a heat wave warning is issued, please stay active indoors for safety.

2026-06-26

Heat-Related Illness

#heat-related illness, #heat stroke, #heat exhaustion, #heat cramps, #heat edema, #heat wave, #dehydration, #summer health, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Heat-related illness is an acute emergency condition that occurs after prolonged exposure to a hot environment. It can cause headache, dizziness, muscle cramps, and, in severe cases, decreased consciousness. People who work outdoors, older adults, and children need to take particular care. If symptoms appear, move to a cool place immediately, and if heat stroke is suspected, call 119 (Korea's emergency number) right away. Please consult a medical specialist.

2026-06-26

Herniated Disc and Back Pain

#Herniated disc, #Disc herniation, #Lumbar disc herniation, #Thoracic spine, #Low back pain, #Leg numbness, #Cauda equina syndrome, #Arthroscopy, #Nerve block, #Numbness in hands and feet, #Arm numbness, #Tingling in the leg

The intervertebral disc acts as a cushion between the bones of the spine. When a disc is damaged or pushed out of place, it can press on nearby nerves and cause pain and numbness. Most cases improve with conservative treatment, but if symptoms are severe or there are signs of nerve damage, evaluation by a medical specialist is needed.

2026-06-26

Hip Fracture

#hip fracture, #fall, #femur, #hip bone fracture, #joint replacement, #fracture fixation, #osteoporosis, #fracture in older adults

A hip fracture is the most serious type of fracture that occurs after a fall. The hip joint is the joint where the pelvic bone and the thigh bone (femur) connect. After a fracture, a person cannot bear weight or stand, which makes walking independently difficult, and in older patients it can lead to complications such as pneumonia, pressure sores, and sepsis, so mortality is high. If you have pain in the hip or upper thigh after a fall, please consult an orthopedic specialist right away.

2026-06-26

Hypotension (Low Blood Pressure)

#hypotension, #orthostatic hypotension, #essential hypotension, #dizziness, #blood pressure, #shock, #headache, #a splitting headache, #migraine, #back-of-head pain, #feeling dizzy, #spinning sensation, #unsteadiness, #feeling faint, #lack of energy, #fatigue, #feeling tired all the time, #loose stool, #watery diarrhea, #frequent trips to the bathroom

Hypotension refers to blood pressure that is lower than normal. Some people have chronically low blood pressure, but when blood pressure that was normal or high suddenly drops, it can lead to serious consequences within a short time. If you experience a sudden drop in blood pressure, please seek prompt evaluation by a medical specialist.

2026-06-26

Key Symptoms in Pediatric Emergencies

#pediatric emergency, #pediatrics, #emergency room, #fever, #febrile seizure, #dehydration, #cough, #rash, #hives, #fall, #chest pain, #seizure, #stomachache, #my stomach hurts, #stomach upset, #abdominal discomfort, #chest ache, #pain in the chest, #chest tightness, #stuffy feeling in the chest, #feverish, #having a fever, #high fever, #low-grade fever, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #dry cough, #persistent cough, #cough that won't stop, #racing heart, #pounding heart, #rapid pulse, #loose stool, #watery diarrhea, #frequent trips to the bathroom, #blood on stool, #bloody stool, #bright red stool

When a child suddenly becomes ill, it can be difficult to decide whether to go to the emergency room right away or to wait and see a local clinic. Unlike adults, children can worsen quickly, so if your child looks or acts differently from usual, do not hesitate to seek medical care.

2026-06-26

Liver Cirrhosis

#liver cirrhosis, #cirrhosis, #liver disease, #hepatitis B, #hepatitis C, #ascites, #jaundice, #hepatic encephalopathy, #variceal bleeding, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Liver cirrhosis refers to a condition in which the liver has been damaged for a long time by various causes and has become hard. It is also called 'gangyeongbyeon' in Korean. When the liver hardens, it cannot perform its functions well. For an accurate diagnosis and treatment, please consult a medical specialist.

2026-06-26

Meniere's Disease

#Meniere's disease, #dizziness, #hearing loss, #tinnitus, #inner ear, #vestibular organ, #endolymph, #aural fullness, #lightheadedness, #spinning sensation, #unsteadiness, #vision going dark, #nausea, #feeling about to vomit, #vomiting, #blurry vision, #difficulty seeing, #hazy vision, #ringing in the ears, #noise in the ear, #cannot hear, #difficulty hearing sounds

Meniere's disease is a condition in which excess endolymph builds up in the inner ear, raising the pressure and causing repeated episodes of dizziness, hearing loss, tinnitus, and a feeling of fullness in the ear. The inner ear is the innermost part of the ear and consists of the cochlea, which is responsible for hearing, and the vestibular organ, which is responsible for balance. If left untreated, hearing and vestibular function may worsen permanently. Please consult an otolaryngology (ENT) specialist.

2026-06-26

Moyamoya Disease

#Moyamoya disease, #cerebrovascular, #cerebral infarction, #cerebral hemorrhage, #transient ischemic attack, #revascularization surgery, #pediatric stroke, #headache, #splitting headache, #migraine, #pain at the back of the head, #weakness in the arms or legs, #difficulty moving one side of the body

Moyamoya disease is a rare cerebrovascular disease in which the major blood vessels leading to the brain gradually become blocked and abnormal blood vessels form. It often presents as cerebral infarction in children and as cerebral hemorrhage in adults. Whether symptoms are present or the condition is found incidentally, please consult a neurosurgery specialist.

2026-06-26

Novalis Radiosurgery

#Novalis, #radiosurgery, #brain tumor, #cerebral arteriovenous malformation, #brain surgery, #weakness in arms and legs, #difficulty moving one side of the body

Novalis radiosurgery is a method that precisely treats brain tumors and cerebral vascular malformations without opening the skull. Because the safest treatment differs for each patient, be sure to consult a neurosurgeon thoroughly.

2026-06-26

Parainfluenza Virus Infection

#parainfluenza, #croup, #laryngotracheobronchitis, #children, #infants, #barking cough, #respiratory infection, #dry cough, #persistent cough, #cough that won't stop

Parainfluenza virus causes acute respiratory illness in infants and young children. It is a major cause of croup (laryngotracheobronchitis), which can produce a harsh, barking cough or hoarseness. Most cases recover with supportive care, but please consult a medical specialist if symptoms are severe.

2026-06-26

Peripheral Vascular Disease (Leg Vascular Disorders)

#peripheral arterial disease, #deep vein thrombosis, #varicose veins, #atherosclerosis, #edema, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Peripheral vascular disease is a condition in which the blood vessels in the legs, far from the heart, become narrowed or blocked by blood clots (thrombi), and it can be a medical emergency. In serious cases, tissue in the leg can die and amputation may be necessary, so if your leg is severely swollen and painful, please consult a cardiology or vascular specialist immediately.

2026-06-26