Use a clinical-strength antiperspirant
Apply antiperspirant at night before bed
Reapply antiperspirant in the morning if needed
Keep armpits clean and dry
Wear loose, breathable fabrics
Choose moisture-wicking clothing
Avoid spicy foods and caffeine if they trigger sweating
Manage stress and anxiety
Shave or trim armpit hair if it helps
Use absorbent underarm pads
Try prescription antiperspirants
Ask a doctor about iontophoresis
Ask a doctor about Botox injections
Ask a doctor about microwave therapy
Ask a doctor about surgery for severe cases