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