In a study of 33 “long COVID-19” patients, treatment with ivermectin resulted in complete resolution of symptoms in 94% of patients.

(ivermectin) Chang, G.A., Figueredo, A.N.T., Yui, M., et al. POST-ACUTE OR PROLONGED COVID-19: IVERMECTIN TREATMENT FOR PATIENTS WITH PERSISTENT SYMPTOMS OR POST ACUTE. Research Gate. July 2020. https://www.researchgate.net/publication/344318845