Can alcohol be used for redness and swelling after a mosquito bite?

Generally, in most cases, redness and swelling caused by mosquito bites can be disinfected with alcohol. However, if there is skin damage or an open wound at the site of the swelling, or if you are allergic to alcohol, it is not recommended to use alcohol. If in doubt, it is advisable to seek medical advice in advance. Detailed explanation is as follows:

Alcohol has antibacterial and disinfectant properties and can effectively relieve symptoms such as redness, swelling, and itching after insect bites, while also helping to prevent the risk of bacterial infection. If the swelling and redness caused by the mosquito bite is only mild skin irritation without obvious skin breakage or wounds, using alcohol can provide some disinfecting effect.

However, if there is obvious skin damage or an open wound at the bite site, alcohol should not be applied directly. The irritant nature of alcohol may cause pain, and delay wound healing. Some individuals may be allergic to alcohol, and its application could trigger an allergic reaction, worsening the symptoms, thus making it unsuitable for use.

When using alcohol, it is recommended to use 75% alcohol concentration. Use an alcohol swab or cotton pad to gently wipe the mosquito bite area, repeating this 3 to 4 times daily until the swelling and itching subside.