Allergy injections are mainly used to treat allergic diseases. Since many allergic diseases are chronic, there is no specific course of treatment for allergy injections to determine how many days it takes to cure them.
There are many kinds of allergy injections, antihistamine allergy injection, chlorpheniramine maleate injection, etc., glucocorticoid allergy dexamethasone injection, compound betamethasone injection and so on.
Allergy injections are mainly used to treat skin diseases such as hives and eczema, or respiratory diseases such as allergic rhinitis and allergic asthma, and need to be used systematically under the guidance of a doctor.
Antihistamines usually take 3~7 days to show obvious effect, and glucocorticoid drugs usually take 1~3 days to show obvious effect, but when the medication is used for a longer period of time, it is necessary to gradually reduce the dosage to avoid rebound of the disease.