Is there any other home remedy to sinus headaches apart from steaming?

Saline. Salt water nose drops or a netty pot may help.
Headache relief. Sinus headaches can be caused by a lot of mucous and inflammation. Saline wash in the nose along with prescription nasal steroids can offer relief from both of these. Also, decongestants like pseudoephendrine can help reduce pressure, along with ibuprofen. You should always ask a physician if these treatments are appropriate for your symptoms.