It's a fairly simple song to play, so enjoy!  Go Tobuscus!
Intro:  A C A
Verse 1
A     C        A
Woke up this morning
A       C         A
Didn't take a shower
A     C          A
I've been regretting it
A    C           A
For the past hour
Chorus:
 
            Dsus2
Because my head itches
   Dsus2             A    C    A
My head itches, yeah
   Dsus2
My head itches
   Dsus2             A    C    A
My head itches, yeah
F                          E                  A    C   A
Doc, I need some dandruff shampoo for my head
Verse 2
A    C        A
Went to the doctor
A            C       A
He looked at me and said
A      C            A
"Boy, what's your affliction?"
A          C       A
I pointed at my head
Chorus:
            Dsus2
And said, my head itches
   Dsus2             A    C    A
My head itches, yeah
   Dsus2
My head itches
   Dsus2             A    C    A
My head itches, yeah
F                          E                  A    C   A
Doc, I need some dandruff shampoo for my head
Verse 3
A        C              A
When the doc was done listening to me
A    C              A
He stared at me quizzically
A         C          A
He said, "Toby, you don't need me"
A         C           A
"Dandruff shampoo is OTC"
Chorus/Outro:
            Dsus2
Cuz if your head itches
   Dsus2             A    C    A
Your head itches, yeah
   Dsus2
If your head itches
   Dsus2             A    C    A
Your head itches, yeah
F                                 E                  A     C
Go to the pharmacy and get some shampoo for your head
                A                C
Dandruff shampoo
               A           C
For your head
               A           C
For your head
               A           C
For your head
               A           C
For your head
               A           C
For your head
              A
For my head