There are several flu vaccines [INFLUENZA vaccination] available:
A nasal flu vaccine for 2 to 18 year oldsSeveral intramuscular vaccinations from 6 months to any age
There is usually one low ovalbumin for the most severe egg allergic children.
Please not that 99% of egg allergic children can have the normal nasal or IM flu vaccine.
Where can I have the vaccine
FLu vaccination with Dr Muller
How much does it cost?