Side effect of benzocaine

Benzocaine can cause side effects such as skin irritation, allergic reactions, and in rare cases, methemoglobinemia, a serious condition that reduces the blood's ability to carry oxygen. Symptoms of methemoglobinemia may include cyanosis (bluish skin), shortness of breath, and fatigue. It's important to use benzocaine as directed and seek medical attention if severe side effects occur. Always consult a healthcare professional for personalized advice.