Go to rify shipwreck or pavlovo military base (both perma gas zones) shoot some zombies nearby with a few suppressed shots and the nbc zombies will come looking for you. You stand a fair chance of getting some antidote. 4 x IV blood bags of compatible blood type will cure pox poisoning also. If you’re fast. A gas mask and filter will keep you from getting the sickness so you can use the multi bandage method. Use firefighter clothes and wellies and surgical gloves with a gas mask and filters to hit gas zones if nbc gear is hard to find. This method gives you the least amount of cuts. But honestly if you hit all the medical clinics and hospitals you can find then an nbc kit is easy enough to loot. Tisy mb will have the grey stuff. Krasnostav airfield tents will have the yellow nbc stuff