If you have repellent that kills mosquitoes, you can use it to kill chiggers as well. Repellent is also a great way to keep chiggers from getting on you and biting you in the first place. Rubbing alcohol is a quick fix for chiggers but it will burn when it touches any bite wounds created by chiggers.

What kills chiggers instantly?

Sevin^®-5 Ready-To-Use 5% Dust kills chiggers by contact in lawns and on plants. Sprinkle a light, even layer of dust from the easy-to-use shaker container over chigger-prone vegetation and lawn grasses. For best results, water your lawn before you apply the dust and don't water again for at least two days.

Does rubbing alcohol dry up chigger bites?

Hydrogen peroxide and rubbing alcohol also dry out the wound, delaying healing. After cleaning the wound or cut, cover with clean, dry bandage. Keep dry and clean daily. Antibiotic ointment is optional, but it also may delay healing time and is not really necessary.