I suffer from varicose veins and need support hose.?

Should I by over the counter or be measured for them

The ones where you are measured are the best. They give proper tension to your legs to facilitate the flow of blood up your legs. They are also quite expensive if that is an issue. Depending on how severe your veins are you could probably wear the over the counter type. Talk to your doctor or the professional who sells them, usually a pharmacist.

i heard theyre causes by a lack of excersize
I've bought them over the counter and have had no problems w/ them...Just talk to your pharmacist about what would be the best type for your body...
Your Dr. will tell you after examination, which Compression Number you need. It is better to buy them at a local pharmacy in case you need to return them. Jobst is a good brand. Thigh high is usually best, but you pharmacist will tell you thigh high, or knee high. Once you know what you need, www.footsmart.com is great. I bought some through them. Using baby powder before you put them on helps them slide better on your legs.