What Can Allergies Lead You To?

Although allergies are not contagious, studies show that more than half of the Thai population lives with them — from mild reactions to life-threatening ones known as Anaphylaxis — and the numbers rise every year. What many people overlook is that allergies left untreated often open the door to other diseases.

The severity of allergic reactions

Reactions differ from person to person, and can progress from mild to severe if ignored.

Respiratory hypersensitivity is the early stage — itchy palate, throat, and nose, frequent sneezing, and a runny nose. Mild, but a warning sign.

Allergic rhinitis is a step up. It usually clears within 1–2 hours without treatment, but if it recurs often and goes unmanaged, it can develop into asthma.

Sinus infection is an inflammation of the paranasal sinuses caused by virus together with allergy. Symptoms resemble a toothache — thick nasal discharge, coughing, sore throat, and foul-smelling phlegm. Worse, it can persist beyond three months and tends to return if not fully treated.

Asthma is a chronic narrowing of the airways from inflammation and spasm, causing coughing, wheezing, and difficulty breathing. It requires an inhaler, and if not managed in time it can be dangerous.

Nasal polyps form from repeatedly inflamed nasal lining that droops down, sometimes growing as large as grapes. They often accompany allergy and lead to sinus infection.

Skin, eyes, and beyond

Beyond the respiratory system, allergies show up in many ways. Hives and skin rashes cause itching and red patches across the body, usually clearing within 24 hours. Allergic conjunctivitis brings itchy, irritated, watery eyes and swelling around them. And food and drug allergies — to seafood, peanuts, cereals, or certain medications — vary in severity from person to person, and in severe cases can be fatal.

Don’t wait for it to spread

The good news: while allergies can’t be cured outright, recognising symptoms early, avoiding triggers, and reducing allergens at home — especially dust mites in the bedroom — clearly lowers the chance of these complications developing. If you suspect you have symptoms, see a doctor for proper diagnosis and a care plan.