Insect bitehttps://en.wikipedia.org/wiki/Insect_bites_and_stings
Insect bites occur when insects bite, causing redness and swelling at the site. Stings from fire ants, bees, wasps, and hornets are usually painful, whereas bites from mosquitoes and fleas are more likely to cause itching than pain.

Localized contact dermatitis can produce skin lesions that look similar to insect bites.

The skin reaction to insect bites and stings typically lasts a few days, but in some cases it may persist for up to two years. These bites are sometimes misdiagnosed as other benign or malignant lesions.

○ Treatment ― OTC Drugs
* OTC antihistamine for relieving itching symptoms.
#Cetirizine [Zytec]
#LevoCetirizine [Xyzal]

* OTC antibiotic ointment may be used if it is a painful lesion.
#Polysporin
#Bacitracin

* OTC steroid ointment for relieving the itching symptom. However, OTC steroid ointment may not work for the low potency.
#Hydrocortisone ointment
☆ In the 2022 Stiftung Warentest results from Germany, consumer satisfaction with ModelDerm was only slightly lower than with paid telemedicine consultations.
  • It could be an insect bite or contact dermatitis resulting from exposure to a strong allergen, such as pollen.
  • Mosquito bite
References Insect bite reactions 23442453
The paper discusses the symptoms of various conditions caused by insect bites, including mosquito hypersensitivity, Epstein-Barr virus NK disease related to mosquito bites, eruptive pseudoangiomatosis, Skeeter syndrome, papular pruritic eruption in HIV/AIDS, as well as symptoms caused by bed bugs, Mexican chicken bugs, assassin bugs, kissing bugs, fleas, black flies, Blandford flies, louse flies, tsetse flies, midges, and thrips.
 Stinging insect allergy 12825843
Systemic allergic reactions to insect stings are thought to impact about 1 percent of children and 3 percent of adults. In children, these reactions often manifest as skin issues such as hives and swelling, whereas adults are more prone to breathing difficulties or low blood pressure. Epinephrine is the preferred treatment for sudden severe allergic reactions, and individuals at risk should be provided with self-injection devices for emergency situations.