Purify Dispel macro with alt to self Purify

[Calvinguy-kelthuzad]

I’m using the below macro to purify on team mates, and dispel magic on enemies. How do I adjust this so that if I press alt, it cast purify on myself?

#showtooltip
/cast [help] Purify; [harm] Dispel Magic

[Sharinthia-winterhoof]

#showtooltip
/cast [mod:alt,@player][help] Purify; [harm] Dispel Magic

[Elvenbane-veknilash (Elvenbane)]

@Elvenbane-veknilash

Priest

Alt: Mass Dispel
Harm: Dispel Magic
Default: Purify Disease/Purify

#showtooltip
/cast [mod:alt] !Mass Dispel; [spec:3,@mouseover,help,nodead] Purify Disease; [@mouseover,help,nodead] Purify; [@mouseover,harm,nodead] [harm] Dispel Magic; [spec:3] Purify Disease; Purify

Replacing Mass with alt-self cast makes it

#showtooltip
/cast [mod:alt,spec:3,@player] [spec:3,@mouseover,help,nodead] Purify Disease; [mod:alt,@player] [@mouseover,help,nodead] Purify; [@mouseover,harm,nodead] [harm] Dispel Magic; [spec:3] Purify Disease; Purify