My big toe is purple, tight and gas an itchy stinging sensation. When I put pressure on it I feel pain. There is a small red dot like under the skin and then it s yellowish colored skin around that then the rest if the toe is purple. My toe is hot compared to my feet which are cold.
In my opinion you have bacterial infection, I recommend you put your foot in hot water to force pus out or have aspiration done, then use oral and topical antibiotics Good Luck