Thanks for your query
i can feel your concerns
there are various causes of low platelet count
.infection is one of them
Since your friend is suffering from amoebiasis
,so most likely it is infection resulting in destruction of platelets.
her platelet count will improve as soon as her infection is treated.
other causes of low platelet count will also be ruled out by her doctor and if it is continuing to decrease,she may need a bone marrow biopsy
to find cause
there are no such foods to improve count and drugs are given to treat low platelet count ,according to cause
wishing her good health