There are a number of ways to prevent getting infected IMO. Although I had the virus in June 2020 I still practice the following daily. (I did not do these things prior to getting infected, sadly).
1. I spray my nostrils, mouth and eyes with a completely non toxic 10ppm silversol (ionic/colloidal) silver solution. I do this before leaving my home and when I get back. It only takes a few seconds and if I wear a mask I spray my mask as well before putting it on. Studies have shown that silver nanoparticles and ions destroy over 650 pathogens, including Sars CoV2.
2. There is a product called Xlear made from grapefruit seed extract, xylitol and saline (salt water). This is sold as a nasal spray for allergies however the ingredients have been shown in trials to completely destroy the Sars CoV2 virus on contact. Xylitol additionally coats the nasal passages with a protective sticky layer making it difficult for viral particles to adhere to the endothelial cells lining them. This is only used for the nose however.
Just from doing these simple things I haven't had so much as a sniffle since being infected and I work around migrants on a daily basis.
Dr. Peter McCullough MD recommends people use a dilute iodine (Betadine) solution as a nasal wash. 2 tsp. betadine in 6oz. water. Spit out what goes down the throat. For the mouth he recommends simple Listerine as a gargle and mouthwash.
Of course many healthcare workers who are not aware of these techniques do take Ivermectin and/or hydroxychloroquine preventatively. Dr. Stella Immanuel MD recommends the following; for Ivermectin four 3mg tablets once weekly if 200lbs or less, 6 tabs if over 200lbs. For hydroxychloroquine; one 200mg tablet once weekly if 180lbs or less, 2 tabs weekly if over 180lbs.
Merry Christmas and Happy New Year ALL!