What is the most powerful decongestant?

The most powerful decongestants are typically those containing pseudoephedrine, such as Sudafed. Pseudoephedrine works by constricting blood vessels in the nasal passages, reducing swelling and congestion. However, it's important to use it as directed, as it can have side effects and may not be suitable for everyone. Always consult a healthcare professional before using strong decongestants, especially if you have underlying health conditions.