Is a DVT in my leg that travels down to my foot serious?

my foot is tingly and I can t feel it in some spots. I can walk but the numbness is traveling up my leg. It has been numb for more than 8 hours and I ve tried to wake up my foot but it s still tingly. If it is a blood clot, is it that serious? Or can I treat it on my own? I really don t want to take a trip to the doctor. Is there anyway I can treat it myself? Do I need to walk around on it? It s not painful. Just slightly numb. I'm all worried, and I can't make it to the hospital anytime soon.