Make sure your spiritual hygiene is on point with regular banishing and cleansing. Take baths with herbs known for repelling and breaking curses. Also, look into dry fasting. It can help with removing parasites as it puts your entire being into a higher vibrational state.
You can also try this:
If you vibrate the above mantra and feel worse, it means you have a parasite and it will do everything it can to get you to stop so it doesn’t lose its hold on you. Push through the crap it will dig up and continue with it every day.