Hello dear good morning. I can understand your concern for your health issue. Be cool and relax first. I have gone through your compaints and your photo . Nothing to worry. 1. Keep the part clean by washing it atleast twice day. 2. Keep it dry and do not wear shoes or socks so that it should have exposure to air. 3. Keep the foot in elevated position while taking rest.
Next Steps
You should take medicines , and for details please take online consultation. I will explain you in detail.