Where can I find my available allowance? November 18, 2024 18:13 Log in to ShopHighmarkOTC.com to view your allowance balance. Related articles Do unused OTC allowances roll over to the following quarter? What do I need to log in to my account? How do I check my order status online? Can I use this allowance at my local pharmacy or anywhere else outside the OTC program? What information can I access from the website?