Japanese speakers, how do you say the following?

[Suzy]

A native Japanese on twitter found out I was a doctor and joked about me having to cure her disease about liking a celebrity. How can I say the following?


I'm afraid there is no cure for that disease. I'm infected too and I can't help myself. LOL!


Thank you in advance,
Suzy


Note: LOL just in case you need clarification means laughter.

[Gordon]

sono byouki wa naoremasen. Boku mo kansen sareta no de shikata ga nai. *wara*

[Kiwi]

Hi, Suzy, thank you for the answer on my question.

I'm afraid there is no cure for that disease.
残念ながらその病気の治療法はありません。

I'm infected too and I can't help myself. LOL!
私も感染してしまっています。もう手遅れです。（笑）

Your friend is very funny, I like this kind of joke, too.

Hope this helps.

--edit--
In case you need romaji, too.

残念ながらその病気の治療法はありません。
zannen nagara sono byouki no chiryouhou wa arimasen.

私も感染してしまっています。もう手遅れです。（笑）
watashi mo kansen site shimatte imasu. mou teokure desu. (warai)

Good luck.