how to remove a title from one exact page?

Question

Today I'm asking how can I remove a subsection title, keeping the page number, from an exact page? I've rotated the page and put an image and you can see that it appears '4.4 ALB' over the page. I've tried \pagestyle{plain}\setcounter{25} (25 it's the page), but it didn't work. Actually it deleted from page 24 to 27 (cause it's the end of the chapter). I've tried \thispagestyle but neither this worked. So I hope someone can help me.

\begin{sidewaysfigure}
    \includegraphics[scale=0.7,keepaspectratio]{plot/ctree.png}
\end{sidewaysfigure}
    \pagestyle{plain}\setcounter{25}

Answer 1

with use landscape environment (because it is not float environment and therefore is simple add \thispagestyle{empty}) instead sidewaysfigure :

\documentclass{article}
\usepackage{pdflscape}   % <--- added
\usepackage{afterpage}
\usepackage{graphicx}
\usepackage{lipsum}

\begin{document}
\lipsum[1-2]
\afterpage{\clearpage\thispagestyle{empty}
\begin{landscape}
    \begin{figure}
    \centering
\includegraphics{example-image}
    \caption{my figure}
    \label{fig:landscape}
    \end{figure}
\end{landscape}
}
\lipsum
\end{document}