Can calvepen be used to treat sinusitus?

Calvepen, which contains phenoxymethylpenicillin, is an antibiotic primarily used to treat bacterial infections. It may be effective for sinusitis if the condition is caused by a bacterial infection sensitive to this antibiotic. However, sinusitis can also be viral or due to other non-bacterial causes, in which case Calvepen would not be effective. It's important to consult a healthcare professional for a proper diagnosis and treatment plan.