I have no info from personal use of the patch. Our son has been on concerta since he was shy of 7, now shy of 12. We tried the patch, but it did nothing. It did not work.
Either call the doctor or try something else. I do remember reading on these boards of children developing a rash, as well as folks happy with it, except for swimming and trying to keep it from getting wet.
I am sure people with post, but there is a thread if you search back.
Best wishes!! My son certainly should have started meds at 4, very hyper and impulisive. We have a lot of history with concerta and guanfacine, if you want to hear!!
All ADHD meds are not really approved for under the age of 6 because ofAre you removing it after 9 hours? It will work up to 12, so if you take it off after 9, it is supposed to keep going. Now if you leave it on say 11 hours, it will not work an additional 3.
I have also found that my son doesn't even get 12 hours out of it. I would say more like 8. We follow up with a booster dose of Ritalin after school.
The more you use the patch, the easier you will find it is to remove the backing. I wake up out of a dead sleep at 4:50 a.m., so I an apply it to my son and have it working by 7:00 a.m., and I have no problems 
Don't forget, it takes about 2 hours to work. A lot of people don't realize that, but if you read the patient pamphlet, it will explain it there.
The red rash is extremly common, just be sure to rotate hips each day, and don't repeat the same spot for a few days.
"I give him a fast acting dose right when he wakes up. I stick it in a
chuckles type candy or sometimes i put them in chocolates and he will
get it right when he wakes. Ill put the patch on right when we are about
to leave for school about an hour and half to 2 hours after he took the
'booster' It really helps with the transitions through the day. "
Redbanana,
I have thought about your method, but I was afraid the booster and the Daytrana would overlap, causing some unwanted side effect like being too sedated, or too hyper. This has not been a problem for you? I would LOVE not having to get up 2 hours earlier than I need to!
I would think you would know after the first day whether the med worked??
Why are you waiting those weeks?? that is too long, I think
I would call the doctor ASAP, juist my opinion.