PLANTAR FASCIITIS

I'm new to this site and suffer from Plantar Fasciitis. I have talked with my doctor and told to do strengthening exercises and stretchs which i have been doing for a few  months now. When talking about it again he kept telling me to do the same things which have been of no help. The pain gets worse throughout the day regardless of what i do or don't do. It hurts to the point of not being able to barely be able to use it. I have an 11 month old son and 2 older kids 9 and 6 so this makes it difficult to take care of them. Can anyone give me any suggestions of what eles there is I can do or how I may be able to go about getting my doctor to listen? PLEASE......

THANK YOU