Acupressure is a sub-type of acupuncture which is non-invasive with a low risk and can be self-administered. No needles are used in acupressure, which is a big difference compared to acupuncture.
Some studies (not all) have shown benefit from acupressure for allergic rhinitis, see the references below.
Here is an example how to do it from the Cleveland Clinic lead acupuncturist:
Here is an example of self-administered acupressure protocol for allergic rhinitis, the protocol uses 5 pressure points:
See the figure here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6593608/figure/Fig2/
PubMed search: https://pubmed.ncbi.nlm.nih.gov/?term=acupressure+allergic+rhinitis