A search for H${}^{+}$ and H${}^{++}$ Higgs boson with the CMS detector

We present results from a search for an exotic Higgs boson in the channel H${}^{++}$ $\to {\mathrm{\ell }}^{+}{\mathrm{\ell }}^{+}$ with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at $\sqrt{s}$ = 7 TeV. We also present results from a search for a charged Higgs boson in $t\bar{t}$ decays in the channel H${}^{+}$ $\to$ $\tau \nu$