One spray, triamcinolone acetonide, is also available over-the-counter as Nasacort Allergy 24HR. More effective than antihistamines for severe symptoms, steroid sprays are considered the gold-standard treatment for allergies. The sprays take up to 12 hours to work, and you may not experience the full effect for a week.
Embalming a body is a multi-step procedure used to preserve a body and delay decomposition for a short time, and temporarily restore a life-like appearance. When a body is embalmed, the bodily fluids are removed and are replaced with formaldehyde-based chemical solutions that will delay decomposition. Then the body is cosmetically prepared for viewing by styling the hair, applying makeup, and setting the facial features.
Another toxic gas used in chemical suicides is hydrogen cyanide, though it is not as common because the consumer products needed for the reaction are less readily available. Hydrogen cyanide gas is created using an acid source and cyanide salts such as sodium cyanide or potassium cyanide.