Most important help imo: Pray, pray, pray. Jesus saves us from an eternity separate from God's love. Nothing else really matters.
On the subject of helping nutritionally if exposed to the vaxxed:
The current jab is not SUPPOSED to be self-amplifying (meaning a vaxxed person can transmit a replicating version of what they were vaxxed with). However, who knows. In any case there are a lot of things you can do.
Foods that are anti-viral include garlic, onions, citrus and pineapple (source of bromelain). Some spices might be beneficial such as anise, fennel and licorice. Quinine is found in small amounts in tonic water and green tea contains something called EGCG which is likely beneficial. Mike Adams of Natural News had some good info about making extracts of anise and pine needles for a home remedy (shikimic acid and/or suramin, I believe) I use anise extract in coffee. White pine needles are being used to make a tea, as well.
Some supplements: Good quality vitamin C, Vitamin D3 (sunlight but I also added high quality cod liver oil with D3 recently) and zinc.
I have also made sure to stock up on some supplements you may want to research yourself: NAC, quercitin, and bromelain. NAC and bromelain have been used to treat vaxxed people.
I've read of people developing pretty severe illness possibly related to being around the vaxxed. I actually wonder if in some cases vaxxed people have high respiratory carriage of the actual "virus" and are spreading that. I haven't heard of anyone else thinking this way, but it seems to me we should be treating our respiratory tract specifically. I have colloidal silver nasal spray, hydrogen peroxide and listerine (no fluoride but has thymol and menthol. I suck down several Ricola (menthol) or zinc/elderberry drops a day.
I don't think nicotine is harmful and might be helpful against "the virus", so I don't complain about 2nd hand smoke any longer.
The Bolen Report had a blog post about hydrogen peroxide in a nebulizer against "the virus". That would be a cheap protocol indeed.
I did not mention HCQ, Ivermectin and/or budesonide. I haven't done any pharmaceuticals for treatment/prophylaxis. You can look into those if you are interested.
My attitude is that after praying, I use a multitude of healthy, God-given substances in synergy. If FDA bans one thing, move to the next or cook it up at home.
God bless.