I have a flat foot and it hurts every morning when I wake up. I followed the methods mentioned in the following link and that helps.
http://www.healthmad.com/Conditions-and-Diseases/Relief-Foot-Pain-Caused-by-Plantar-Fasciitis.613965
Could you suggest other methods that help in my situation?
Flat feet (or low/fallen arches) can lead to over-pronation, a biomechanical imbalance that may cause serious problems over time. When people who suffer from over-pronation stand or walk, the arches collapse with every step they take, and the ankles roll inwards. Pronation itself is not wrong as we need to pronate and supinate as part of our gait. Pronation (rolling in) acts as a shock-absorbing process and supination (rolling out) helps to propel our feet forward.
Flat feet or fallen arches may lead to uncomfortable, and even painful conditions such as plantar fasciitis and heel spurs. The most effective treatment solution for over-pronation is to wear an orthotic shoe insert.
For more information please refer to links below.
This might sound weird but take a tennis ball and roll that between your feet where you artch should be, as much as you can every day when you have the time and you will not be flat footed any more.