I'm worried that my varicose veins are getting worse.

Hello. I am older and have to sit for long periods to work, so my blood circulation in my legs is poor. I elevate my legs while sleeping, but my legs still fall asleep. Sometimes I wake up due to cramps, but I don't have time to go to the hospital. What kind of treatments are available at the hospital? I am also curious if those methods are effective. Are many people undergoing surgery for varicose veins?