If we are bitten, we will habitually catch it at once. However, after scratching, the tissue fluid and lymph in the skin ooze out and swell into a bag, which will become more and more itchy and will not fade easily. The following methods can be used to relieve itching and help relieve redness. 1. At home, it can be applied with thick soapy water to relieve itching quickly, or it can be applied to swollen places with soap dipped in water. 2. If the bite is itchy, you can play it with your fingers first, and then apply toilet water and wind oil. 3. Applying or brewing the itchy place with salt water can soften the lump and effectively relieve itching. 4, you can use the juice in aloe leaves to relieve itching. When the bite is red, swollen and itchy, you can cut a small piece of aloe leaf, break it after washing, and rub it a few times at the swollen place to reduce swelling and relieve itching. 5. Applying tiger balm and salt can make local anesthesia, relieve nerves and relieve itching. 6, grinding aspirin pills and applying water to the wound also has the effect of anti-inflammatory and detumescence.