The main products are loratadine and astemizole, both of which have no therapeutic effect on skin allergies when applied to the face.
Loratadine and astemizole are both highly effective antihistamines, and are more commonly used in tablets, granules, suspensions, and so on. The two drugs are mainly used as oral preparations, through the oral intake into the gastrointestinal tract, and through the gastrointestinal mucosa absorption into the bloodstream so as to achieve the effect of anti-allergy, external treatment is ineffective.
Topical medications for the face generally refer to preparations that can be absorbed through the mucous membranes of the skin, such as creams, ointments, applications and so on. From the types of products available, loratadine and astemizole do not have relevant topical preparations and are used as oral preparations, not as topical medications.
For allergic reactions on the face, medication can be given under medical supervision.