Advantages of microphlebectomy to remove temple veins is that they would be gone. Disadvantages would be that it is a vascular area and you are prone to get a bruise and also show timy scars on your temple and may have an area of numbness in the temple. It is also an expensive option as microphlebectomy in the temple areas are not covered by insurance ($2000).
The advantages of microphlebectomies for treating your veins is that it is a one time procedure, The disadvantages are that it will leave a small scar/scars, cause temporary swelling and bruising and it is a minor operation. There is also a chance of the veins coming back over time(low risk).The procedure should take about 30 to 45 minutes and other veins should not dilate or compensate for removing these veins.