Bug Bite Thing vs heat it (2026): Suction or Heat?

Bug Bite Thing and heat it are drug-free bite gadgets sold on Amazon by their own makers, and they work in opposite ways: one pulls with suction, the other presses heat into the skin. Campers and parents choosing one for a pack or a first-aid kit should decide on who will use it and how old they are before anything else.

How we chose: we did not test either; we compared each maker's instructions, age limits and warnings with the Amazon listings, both sold by the brand's own store and in stock on September 29, 2026.

Neither method is on the American Academy of Dermatology's list for itchy bites, which names ice, hydrocortisone and antihistamines. Our bug bite relief guide covers those too.

Side by side

Prices are Amazon's, as of the time shown, and subject to change. Details

Bug Bite Thing's figures are from its how-it-works page; heat it's are from its help center.

How each one works, in the makers' words

Bug Bite Thing says its tool relieves itching and swelling "by removing the insect saliva or venom left underneath the skin." You set the cup over the bite, pull the handles until you feel suction, hold for 10 to 20 seconds and push down to release. For children and sensitive skin, pull about halfway and hold 5 to 10 seconds.

heat it says it heats the skin "to around 51 °C," which it calls local hyperthermia. The classic and pro models run 4, 7 or 9 seconds, chosen in the app. The maker says treating right away works best, and that "symptoms can often be prevented altogether" when you do.

Both claims are the makers' own. We found no independent body that recommends either method.

Who can use them

This is the real difference. Bug Bite Thing says its tool "contains NO ingredients, so it is safe for everyone to use," with adult supervision because of small removable parts, and gives a gentler routine for children.

heat it sets a floor: it "may be used on children from the age of 3," and children may use it themselves from 12. It also lists places never to use it: inside body openings, on mucous membranes, gums, nail beds, eyes, the outer ear canal or broken skin.

For a toddler, that makes the choice for you.

What each can't treat

heat it's help center says its pen is "not suitable for treating allergic reactions or tick bites," and that a stinger must be removed before use. For ticks, use fine-tipped tweezers the way the CDC describes; our tick removal tools guide covers them.

Bug Bite Thing lists bees and wasps among the insects its suction tool works on, but advises against the face and neck, where it may leave marks. Its page also says: "If you are having a severe reaction, seek medical attention immediately."

What they need to work

Bug Bite Thing needs nothing: no battery, no phone, no ingredient to run out.

heat it plugs into a phone. The USB-C version fits Android phones and iPhone 15 and later; iPhones 6s through 14 need the Lightning version. The classic and pro models need heat it's app. The listing says one treatment takes at most 0.1% of the phone's battery.

Which one to buy

Buy Bug Bite Thing if children under 3 will use it, if you want nothing that heats skin, or if your phone is often dead or left in the car.

Buy heat it if the users are adults or teens, you carry a USB-C phone, and you want a treatment measured in seconds rather than a 20-second hold.

Related: DEET vs picaridin to prevent the bites in the first place.

Frequently Asked Questions

Can I use either one on a child's face?

Bug Bite Thing does not recommend its tool on the face or neck. heat it rules out the eyes and mucous membranes; for anywhere near a small child's face, a cold compress is the simpler choice.

Does heat it work on bee stings?

heat it's site lists bees and wasps among the stings it treats, but says to remove the stinger first and not to use it for allergic reactions.

Which one lasts longer?

Bug Bite Thing has no battery or consumable. heat it uses the phone's battery, at most 0.1% per treatment according to the listing.