I sprained my ankle a week ago. the pain started as excruciating but now it's just swollen, feels numb and achey. almost like it needs to pop. my job requires a lot of walking and i have a brace & follow the rice method. when should i see a doctor?

Maybe this week: A simple ankle sprain should be better after 1-2 weeks. If not better, a primary care doctor, sports medicine doctor, or orthopedic doctor can evaluate to see if there is something more serious than a simple sprain. X-rays may or may not be needed at the first visit. One should avoid using the ankle too much until the doctor is able to examine it. Some physical therapy and ankle retraining helps.

For completeness : The previous answer was incomplete. A Podiatist is more than qualified to treat an ankle injury. After 48-72 hours contrast bath is more effective than simply icing. The bath requires two containers, one with warm-hot water the other ice water. Start with hot water 3 mins. Then ice water for 1 min. 5 times in each. As the ankle becomes less swollen you will have a better idea in seeking help.