Hihy Health
Encyclopedia

Allergic Conjunctivitis

#allergic conjunctivitis, #allergy, #itchy eyes, #red eyes, #pollen, #conjunctivitis, #stuffy nose, #clear runny nose, #yellow runny nose

Allergic conjunctivitis is a condition in which the conjunctiva of the eye becomes inflamed in response to allergens such as pollen and fine dust. It is characterized by itchy, red eyes. If symptoms are severe or persist, please consult an ophthalmology specialist.

2026-06-26

Allergic Rhinitis

#allergic rhinitis, #rhinitis, #sneezing, #runny nose, #nasal congestion, #house dust mites, #pollen, #seasonal change, #headache, #splitting headache, #migraine, #pain at the back of the head, #stuffy nose, #clear runny nose, #yellow runny nose

Allergic rhinitis is a condition in which the nasal mucosa reacts excessively to certain substances (allergens). The main symptoms are sudden bouts of sneezing, clear runny nose, stuffy nose, and itching. According to the Korea National Health and Nutrition Examination Survey, about 18% of Koreans experience it. The incidence is especially high among teenagers. If symptoms persist or complications are suspected, please consult an otolaryngology (ENT) specialist.

2026-06-26

Asthma

#asthma, #bronchi, #allergy, #cough, #wheezing, #shortness of breath, #inhaler, #bronchodilator, #yellow dust, #fine particulate matter, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #dry cough, #persistent cough, #cough that won't stop

Asthma is a chronic respiratory condition in which the airways (the passages through which air moves in and out of the lungs) become hypersensitive, often due to allergic reactions, and narrow, causing recurring coughing, wheezing, and shortness of breath. It is sometimes mistaken for a severe cough or cold, which can delay proper treatment. Symptoms can worsen with exposure to yellow dust, fine particulate matter, or pollen. If you have recurring coughing or shortness of breath, please consult a pulmonologist or allergist.

2026-06-26

Atopic Dermatitis

#atopic dermatitis, #allergy, #itching, #eczema, #pollen, #house dust mites, #moisturizing, #steroid ointment

Atopic dermatitis is a chronic skin condition in which allergic mechanisms cause ongoing inflammation of the skin. It causes severe itching and recurring eczema, and the skin can become thick and rough (lichenification). It tends to occur when a person with a genetic predisposition is exposed to allergy triggers, and symptoms can worsen with spring pollen, house dust mites, and fine particulate matter. If symptoms persist, please consult an allergist or a dermatologist.

2026-06-26

Cholinergic Urticaria

#cholinergic urticaria, #hives, #exercise, #sweating, #body temperature, #allergy, #stinging sensation, #abdominal pain, #stomachache, #abdominal discomfort, #stomach pain

Cholinergic urticaria is a condition in which numerous small hives appear on the skin when body temperature rises, such as from strenuous exercise, mental stress, or a hot bath. Please consult a dermatology specialist.

2026-06-26

Chronic Obstructive Pulmonary Disease (COPD)

#COPD, #chronic obstructive pulmonary disease, #airway obstruction, #smoking, #pulmonary function test, #bronchodilator, #smoking cessation, #emphysema, #dry cough, #persistent minor cough, #cough that will not stop

Chronic obstructive pulmonary disease (COPD) is a chronic lung disease in which the airways (the passages through which air travels) gradually narrow, making breathing difficult. The leading cause is smoking. Airways that have narrowed are mostly not restored, so early detection and smoking cessation are especially important. If cough, sputum, or shortness of breath persists, please consult a pulmonology and allergy specialist.

2026-06-26

Cold and Hot Compresses

#hot compress, #cold compress, #arthritis, #muscle pain, #hot and cold therapy, #paraffin bath, #ice pack, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Compresses are often used to relieve pain and loosen stiff joints. However, hot or cold compresses must be chosen appropriately depending on when the injury occurred and the person's condition, so it is safer to follow a medical specialist's diagnosis than to decide on your own.

2026-06-26

Cold Urticaria

#cold urticaria, #hives, #cold exposure, #allergy, #cold water, #winter, #headache, #severe headache, #migraine, #back-of-head pain, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation, #body swelling, #facial swelling, #leg swelling, #swelling of the hands and feet

Cold urticaria is a condition in which hives develop upon exposure to cold air, cold water, or ice. In severe cases, dangerous symptoms such as difficulty breathing can occur, so please consult a medical specialist.

2026-06-26

Drug Allergy

#drug allergy, #anaphylaxis, #hives, #adverse drug reaction, #antibiotic allergy, #diagnosis, #prevention, #shortness of breath, #difficulty breathing, #labored breathing, #feeling of suffocation, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Drug allergy is a condition in which an allergic reaction occurs after taking a medication. Reactions range from mild ones, such as hives, to life-threatening anaphylaxis. It is important to identify the causative medication accurately and to inform your care team.

2026-06-26

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

Multidrug-Resistant Organisms (Antibiotic-Resistant Bacteria)

#multidrug-resistant organisms, #antibiotic resistance, #superbug, #MRSA, #CRE, #antibiotic misuse

Multidrug-resistant organisms are bacteria that have developed resistance to several types of antibiotics. They are also called 'superbugs.' Misuse and overuse of antibiotics are the main cause, and infection with them can be very hard to treat. Please take antibiotics only as prescribed by a doctor and for the prescribed length of time. If you have questions about antibiotic use, please consult your doctor.

2026-06-26

Pneumonia in Older Adults

#pneumonia, #pneumonia in older adults, #pneumococcus, #flu, #aspiration pneumonia, #vaccination, #immunity, #respiratory tract, #chest ache, #chest pain, #chest tightness, #feeling of stuffiness in the chest, #feeling feverish, #body heat, #high fever, #low-grade fever, #body shaking, #feeling cold and shivering, #cold sensation, #dry cough, #persistent minor cough, #cough that will not stop, #hand tremor, #body tremor

Pneumonia in older adults generally refers to pneumonia that occurs at age 65 or older. Pneumonia is inflammation of the lungs caused by infection with bacteria, viruses, or other organisms. More than 50% of people with pneumonia and more than 90% of people who die of pneumonia are aged 65 or older. In older adults, symptoms are often not obvious, so diagnosis is easily delayed. If you have suspected symptoms, please consult a pulmonology and allergy specialist immediately.

2026-06-26