After cycling the other day I have found that I now have excruciating pain around the upper outside of the arch of my left foot. I am in constant pain and this increases with movement or when trying to put weight on it. The pain has got increasingly worse after two days. Would it be necessary to seek medical help?
As you did not have a specific injury to the foot the most likely reason for the pain is some irritation or inflammation. This can occur after repeated use of any part of the body and maybe the cycling triggered it. Often pain on the bottom of the foot or arch is called plantar fasciitis. It should settle with some rest or by taking some anti-inflammatory medications such as ibuprofen. If it doesn't then of course you should get it examined by your doctor to get a solid diagnosis.