Thoroughly wash all fruits, vegetables and leaf lettuce--with pressure spray, soaking, spinning. Vinegar or Lemon juice rinse may help too.
Most healthy individuals will clear the parasite on there own with time (potentially several days up to intermittent impacts over weeks). However, if you develop severe diarrhea-- with some nausea but more diarrhea than vomiting and no fever that is extremely persistent, you have other concerning health conditions, or you are unable to drink enough fluids to replace that which you have lost (including electrolytes) then you will need to go to an Urgent Care, ER, or other clinic prepared to both submit your stool sample for confirmation (both bacterial AND PARASITIC!) and give fluids if necessary.
IF and I mean this IF you are allergic to sulfa drugs, you need to let the clinic know as the absolute preferred, best, data-supported treatment is Trimethoprim-sulfamethoxazole. If you are sick enough to need IV fluids and have not shown any potential to clear the parasite on your own, then they will want to treat. If you are allergic, there is a drug that is effective, yet its use for Cyclospora is off-label. This is not unusual as FDA does not always extend a wide enough approval for related parasitic organisms or other uses on first "pass." But physicians have the ability to prescribe it off label (nitazoxanide, combined with aggressive fluid therapy has been shown to be an effective off-label alternative for the sulfa-allergic)
I'm getting really detailed because I am sick and tired of seeing patients come in the ER--seen by others who did not even consider this parasite (or any other) as the cause of diarrhea and thus inappropriately tested (bacteria only) and treated with an ineffective antibiotic.