Note the size of the local reaction if this is present. The patient must avoid exercise, alcohol and hot baths for 6 hours after the injection. Immunotherapy Reactions Warning Signs Dizziness Itching of the throat, palms, soles. Repeated clearing of throat. 0.3 ml Repeat after 5 minutes.
Most reactions occur at the start of the course or when the maximal dose is being reached.
Immunotherapy injections should be given all year round. It may be necessary to halve the dose of extract during the pollen season. It is not usually worthwhile mixing 2 or more allergen extracts in the same vial. If two allergens need to be used in a single patient, then each extract should be given at different sites e.g. one on the left upper arm and one on the right upper arm. This is usually done at the same time.