Topical steroids are the topical forms of corticosteroids. Topical steroids are the most commonly prescribed topical medications for the treatment of rash, eczema, and dermatitis. Topical steroids have anti-inflammatory properties, and are classified based on their vasoconstriction abilities. There are numerous topical steroid products. All the preparations in each class have the same anti-inflammatory properties, but essentially differ in base and price.
Weaker topical steroids are utilized for thin-skinned and sensitive areas, especially areas under occlusion, such as the armpit, groin, buttock crease, breast folds. Weaker steroids are used on the face, eyelids, diaper area, perianal skin, and intertrigo of the groin or body folds. Moderate steroids are used for atopic dermatitis, nummular eczema, xerotic eczema, lichen sclerosis et atrophicus of the vulva, scabies (after scabiecide) and severe dermatitis. Strong steroids are used for psoriasis, lichen planus, discoid lupus, chapped feet, lichen simplex chronicus, severe poison ivy exposure, alopecia areata, nummular eczema, and severe atopic dermatitis in adults.
Ant venom are irritants and toxins inflicted by ants. Most ants, like those in the genus Crematogaster, spray a venom, the main constituent of which is formic acid.
There are only rare examples of stinging ants. Three genera of ants sting, Solenopsis (fire ants), Pachycondyla (ponerine ants), and Myrmecia. In the case of fire ants, the venom consists of alkaloid and protein components. The stings cause cutaneous condition caused by stinging (as distinct from biting) venomous ants. Particularly painful are stings from fire ants.:450