If you have received an allergy shot, you don't need to wait for any specific number of days before getting a COVID-19 vaccine. Allergy shots, also known as allergen immunotherapy, work to desensitize the body to specific allergens over time. These shots do not interfere with the administration of COVID-19 vaccines.
There is no medical reason to delay getting the COVID-19 vaccine after an allergy shot. In fact, it is generally recommended that individuals, including those receiving allergen immunotherapy, get vaccinated against COVID-19 to protect themselves and others from the virus.
As always, if you have any specific concerns or questions about receiving a COVID-19 vaccine or allergy shots, it is best to consult with your healthcare provider. They can provide personalized advice based on your medical history and current health status.