On desktop:
Go to altroapp.com and sign in to your portal.
Select Messages from the left navigation.
Open a conversation on the right to read the full thread and reply.
On mobile:
Go to altroapp.com and sign in to your portal.
Tap Messages in the bottom navigation bar, on the far left.
Open a conversation to read the full thread and reply.
For medical emergencies, call 911. For everything else, expect a response within 1 business day