Treat the underlying cause with a doctor
Stop iron supplements unless prescribed
Avoid iron-rich supplements and multivitamins with iron unless advised
Limit intake of iron-fortified foods if your doctor recommends it
Stay well hydrated
Donate blood if you are eligible and your doctor approves
Manage dehydration, smoking, and high altitude exposure if relevant
Treat sleep apnea or chronic lung disease if present
Review medications with a healthcare professional
Get tested for conditions like polycythemia vera, heart disease, or lung disease
Seek urgent medical care if you have chest pain, shortness of breath, severe headache, or neurological symptoms