Small 1Ml tubeculin syringes are used to inject commercial allergen extracts.
Injections are normally given into the loose ("floppy") tissue over the back of the upper arm, half way between the shoulder and elbow.
Injections are given under the skin ("subcutaneous").
This is the least painful place to inject allergen, as there are few nerve endings in the skin.
Some doctors may advise you to take an antihistaminic a few hours before each injection to reduce the likelihood of local discomfort and other side-effects.
It is started with very dilute doses (usually 500-1000 times diluter than the dose used for testing ) and very small concenterations at fixed intervals (usually 2-3 doses per week).
This schedule is maintained till a maintenance dose is reached.
After this, duration between two injections is increased (from 2 per week to 1 per week to once in 15 days to once in a month and so on ) till an optimal relief is obtained.
