Hydroxyzine HCL is used to calm energy in the brain, which assists in the treatment of allergic reactions, nausea or vomiting. 1  Indications and Usage. 2  Hydroxyzine HCL Dosage. 3  Hydroxyzine HCL Side Effects.ndications and Usage. Hydroxyzine is sold under the brand names Atarax or Vistaril. Hydroxyzine is used as an antihistamine to help reduce the occurrence of sneezing or runny nose. Unlike some antihistamines you can use Hydroxyzine HCL to treat allergic reactions on the skin such as hives or contact dermatitis.
1 These spasms tend to occur when a child is waking up or going to sleep, or after a feeding. Infants can have hundreds of these seizures a day.  Focal seizures. Your baby may sweat, vomit, become pale, and experience spasms or rigidity in one muscle group, such as fingers, arms, or legs.
Febrile seizures are convulsions in children triggered by a high fever. Most febrile seizures occur in young children ages 9 months to 5 years. Simple febrile seizures last for less than 15 minutes and only occur once in a 24-hour period. They are usually an isolated event and not a sign of underlying epilepsy.