In people

When people with long-standing inflammatory illness after mould exposure use nasal VIP, fatigue, brain fog, aches and breathlessness ease over weeks. Lab markers move with them: the inflammatory messengers C4a, TGF beta-1 and MMP9 settle, and estradiol, testosterone and vitamin D move back toward normal. Lung vessel pressure on effort falls. People describe feeling like themselves again. The nasal spray can cause mild nasal irritation or a brief drop in blood pressure, which is why it starts low.