After removing the stinger, washing the afflicted area with soap and applying ice to the wound are the first home remedies to try for yellow jack stings, states WebMD. Applying a solution of baking soda and water can also be effective in countering the acidity of the venom, notes HealthWyze.
Proper removal of the stinger, by scraping it off rather than pulling it out, reduces the amount of venom and minimizes the severity of the wound, states WebMD. For an allergic reaction to a yellow jacket sting, taking a heavy dose of chamomile or echinacea can effectively stabilize the reaction, states HealthWyze. Over-the-counter antihistamines help to relieve itchiness or swelling, while anti-inflammatory painkillers help to alleviate the pain, notes WebMD.