Using sunscreen and insect repellent together may cause chemical reactions or poisoning
In the summer heat, many people apply sunscreen before going out. Some also spray insect repellent to prevent bites. However, recent news reports indicate that a Taiwanese woman fainted after using both products simultaneously, before their protective effects could take effect.Experts emphasize that when using skincare products in summer, attention must also be paid to application "sequence" and time intervals.
Most sunscreens contain the ingredient "oxybenzone," while mosquito repellents commonly use the chemical "DEET" (diethyltoluamide, also known as N,N-diethyl-meta-toluamide).DEET, also known as N,N-diethyl-meta-toluamide or DEET), rubbing them together can cause the concentration of DEET to increase by three times. If too much is absorbed through the skin, drowsiness, unconsciousness, sudden seizures, or neurological poisoning may occur within 10 minutes.DEET can cause paralysis of muscles and the nervous system. After applying sunscreen, avoid using insect repellent immediately. If both are necessary, wait at least 30 minutes between applications.
This case serves as a reminder that while summer protection against mosquitoes and sun exposure is essential, simultaneous use of these products should be avoided. Separate preventive measures are recommended.
So, how can we protect ourselves from mosquitoes during summer outdoor activities?
When engaging in outdoor sports during hot summer weather, precautions against insect bites and venomous snake bites are crucial. While most insect bites are harmless, encounters with venomous snakes, large swarms of insects, or allergic reactions to specific insect toxins can be life-threatening.
Taking necessary precautions and correctly using insect repellents can prevent venomous snake bites and most insect stings. When engaging in outdoor activities, especially in mountainous areas or near rivers, lakes, or streams, avoid wearing sandals while hiking or walking through grassy areas. Carry insect repellent products like Tiger Balm or Wan Jin Oil.
Applying mosquito repellent or wind oil to your body while traveling can deter insects. Applying these products to clothing provides even better protection, as repellents on the skin can be washed off by sweat.
How to protect against sun exposure during summer outdoor activities?
Summer is peak season for outdoor recreation, with travel often centered around beach swimming, mountain hiking, and scenic countryside tours. Whether swimming or sightseeing, prolonged sun exposure can cause sunburn on exposed areas like the face, neck, arms, and legs.
Sunburn develops as follows: Initially, the skin shows well-defined, swollen red patches or blisters accompanied by a burning or stinging sensation. Pain peaks within 24 hours before gradually subsiding. The redness and blisters then begin to fade. Mild cases may heal within two days, while severe ones may take up to a week to recover.Prolonged sun exposure to the head and face may cause headaches, nausea, vomiting, eyelid swelling and discomfort, conjunctival congestion, and even transition from profuse sweating to reduced perspiration, leading to heat exhaustion or heatstroke. Psychological distress may also occur.
To prevent sunburn during summer outings, take the following precautions:
1. Wear tinted glasses (sunglasses), opt for long sleeves and pants, and use straw hats, sun hats, or wide-brimmed hats to effectively shield skin from direct, intense sunlight.
2. Apply sunscreen to exposed skin areas. Many cosmetic sunscreens are available; consistent application during summer travel significantly reduces sunburn severity by blocking mid-range UV radiation.
3. Regularly expose yourself to moderate sunlight in small, frequent doses to gradually darken your skin tone (through melanin production). This builds a natural barrier that absorbs UV rays and protects against sunburn.
If sunburn occurs during travel, avoid further sun exposure to prevent worsening mild symptoms. For severe cases, gently rub the affected area with watermelon rind (the outer peel after removing flesh) to reduce swelling, inflammation, and pain.