Are you self-carrying your medicine? What are you self-carrying? Often times school will allow you to self-carry prescription medication (like epi-pens), but not over-the-counter drugs (such as Benadryl/other antihistamines).
Check with your county, school/school nurse to make sure you aren’t breaking any rules by carrying an antihistamine!
If necessary, fill out extra forms to get the special permission required to carry non-prescription medications (often times a doctor will need to sign off on this, so get it done early)!