Now I'm kind of a maniac about many things I do so this was important that I truly do it right. The smart way to make a comeback is slowly. I say this mostly for myself because I give great, sound advice but I don't always follow that protocol. When we runners come back after taking time off, we have to do a solid warm up and then a run/walk combo. If you have a device that you can set to let you know when it's time to walk, it makes things a lot easier. Otherwise, ten minutes will fly by and you'll be thinking "I feel so good, I can keep going". And that mentality is seriously a trap! Make a simple plan, set your length of time and enjoy easing back in. (Should I say that again??) Repeat this method for the first 3-4 runs before adding time and speed back in.
If you are a garmin/running toy kind of person like me, you need to only use it to measure your length of time or set distance. DO NOT focus on the total time it takes to reach that set distance. Speed will come back in with patience and smart thinking. Promise!