How are damp walls in the house a health hazard?

Damp walls and mould in the house increase health risks, especially to respiratory system. "Mould spores are potent allergens that can irritate respiratory system, leading to asthma and allergic rhinitis," said Dr Praveen Kumar Pandey, Senior Director, Pulmonology. In sensitive individuals, it can cause anaphylaxis, a severe allergic reaction that results in itchiness or redness of skin.