In the developed world, about 20% of people are affected by allergic rhinitis, about 6% of people have at least one food allergy, and about 20% have or have had atopic dermatitis at some point in time. Depending on the country, about 1–18% of people have asthma. Anaphylaxis occurs in between 0.05–2% of people. Rates of many allergic diseases appear to be increasing. The word "allergy" was first used by Clemens von Pirquet in 1906. Signs and symptoms
Many allergens such as dust or pollen are airborne particles. In these cases, symptoms arise in areas in contact with air, such as the eyes, nose, and lungs. For instance, allergic rhinitis, also known as hay fever, causes irritation of the nose, sneezing, itching, and redness of the eyes. Inhaled allergens can also lead to increased production of mucus in the lungs, shortness of breath, coughing, and wheezing.Aside from these ambient allergens, allergic reactions can result from foods, insect stings, and reactions to medications like aspirin and antibiotics such as penicillin. Symptoms of food allergy include abdominal pain, bloating, vomiting, diarrhea, itchy skin, and hives. Food allergies rarely cause respiratory (asthmatic) reactions, or rhinitis. Insect stings, food, antibiotics, and certain medicines may produce a systemic allergic response that is also called anaphylaxis; multiple organ systems can be affected, including the digestive system, the respiratory system, and the circulatory system. Depending on the severity, anaphylaxis can include skin reactions, bronchoconstriction, swelling, low blood pressure, coma, and death.
Chemotherapy in case the tumor is cancerous. Radiation therapy to prevent the cancerous cells from developing. Ovarian low malignant potential tumors
The tumor forms in the ovaries and gradually spreads to the outside of ovary. This mostly affects younger women and also hinders the reproductive system.Causes:
Causes are debatable and these may occur to both pregnant women and women who do not opt for pregnancy
Symptoms:
Abdominal pain or swelling. Bowel problems or constipation.Treatment:
Depending on the size of the tumor, choice of pregnancy, the spreading of the tumor, age and choices, removing the affected ovary is the most common treatment. In rare situations, the tumor is taken out of the ovary. Also, hysterectomy can be an option. Polycystic ovary syndrome
This is a hormonal imbalance, where androgens (also called male hormones) are elevated.The increased level of androgens may result in irregular menstrual cycle and diabetes and heart problem in the long run. It also affects the body in various ways like problem getting pregnant, sleep apnea, depression and anxiety, can enhance the risk of endometrial cancer. Symptoms:

Irregular periods. Heavy bleeding during periods. Excess hair growth on face and other parts of the body like chest, back, belly. Acne. Weight gain. Darkening of skin. Headaches.Treatment:

Oral contraceptives to promote regular periods
Healthier lifestyle.Other conditions include:

Ovarian cancer
Luteoma
Hypogonadism
Hyperthecosis

References


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