Insect bites can cause swelling and itchiness. Rarely, they can cause problems breathing and emergency care.
Medicine and a cold compress can help ease swelling and pain. Natural treatments have been used to prevent bugs from biting.
Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.
Talk to your doctor about any supplements or therapy you would like to use. Some can interfere with treatment or make conditions worse.
Herbs and Supplements
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A2. Rajan TV, Hein M, et al. A double-blinded, placebo-controlled trial of garlic as a mosquito repellant: a preliminary study. Med Vet Entomol. 2005 Mar;19(1):84-89.
A3. Gardulf A, Wohlfart I, et al. A prospective cross-over field trial shows protection of lemon eucalyptus extract against tick bites. J Med Entomol. 2004 Nov;41(6):1064-1067.
B1. Hill N, Stam C, et al. The efficacy of Prrrikweg gel in the treatment of insect bites: a double-blind, placebo-controlled clinical trial. Pharm World Sci. 1996 Jan;18(1):35-41.
B2. Hill N, Stam C, et al. A placebo controlled clinical trial investigating the efficacy of a homeopathic after-bite gel in reducing mosquito bite induced erythema. Eur J Clin Pharmacol. 1995;49(1-2):103-108.
C1. Sajo ME, Song SB, et al. Applicability of citronella oil (Cymbopogon winteratus) for the prevention of mosquito-borne diseases in the rural area of Tikapur, far-western Nepal. Rural Remote Health- 2015;15(4):3532.
C2. Benelli G, Pavela R. Repellence of essential oils and selected compounds against ticks-A systematic review. Acta Trop. 2018 Mar;179:47-54.
Last reviewed November 2019 by EBSCO NAT Review Board Eric Hurwitz, DC Last Updated: 6/2/2020