Aldara can be very hard on the skin. Its doubtful this is herpes, but you should have your doc take a look.
I am in a similar situation. I used the aldara cream, it got rid of my wart without causing major side effects, but I broke out into a red rash about a week after i stopped using it. the rash started on the area where i was using the aldara and then spread to surrounding areas. it doesn't hurt that much and I don't have any blisters or sores or anything but it does itch a little and feel irritated.
I've been experiencing this rash for about a month now, and i too am worried it is herpes, but i hope it's not.
i've read other places where people experience similar symptoms, and they went to their doctor and it wasn't herpes. i've also read other places that claim that aldara can trigger latent herpes outbreaks, but i don't know if i believe them.
let me know how it goes!