After reviewing the provided sources, there is no evidence to suggest that Lipitor (atorvastatin) affects the efficacy of allergy medication. Lipitor is a medication used to lower cholesterol levels in the blood [1]. It does not have any known interactions with allergy medications.

One of the sources discusses Paxlovid, a medication used to treat COVID-19 [2]. The article does not mention Lipitor or any interaction with allergy medication.

The third source is a research article that discusses the effects of atorvastatin on the immune system [3]. The study found that atorvastatin did not have any significant effect on the immune response to influenza vaccination. While the study does not directly address allergy medication, it does suggest that atorvastatin does not significantly affect the immune system's response to vaccines, which may be relevant to allergy medication.

In conclusion, there is no evidence to suggest that Lipitor affects the efficacy of allergy medication. However, it is always important to consult with a healthcare provider before starting any new medication or making changes to an existing medication regimen.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.yalemedicine.org/news/13-things-to-know-paxlovid-covid-19
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7122736/