Avoid scratching the area or bursting any blisters, to reduce the risk of infection – if your child has been bitten or stung, it may help to keep their fingernails short and clean. Avoid traditional home remedies, such as vinegar and bicarbonate of soda, as they're unlikely to help.

Should I pop a bug bite with pus?

A cousin of the harmless black ant, the fire ant is an insect whose sting leaves you with pus-filled blisters. Although these bites look like pimples, and you may be tempted to pop them, you shouldn't.

What happens if you pop a mosquito bite?

Scratching mosquito bites can lead to secondary infection if you break the skin or reopen the bite. Dirt from under your nails is the culprit here, and can lead to staph, strep and other bacterial infections.