Hi Ratul Banik, hope you be fine, well the medicine you are giving to your sister is fine because it works by relaxing muscles,opening air passages and inhibiting phosphodiesterase enzymes, its active ingredient is theophylline, it can be used for breathing difficulty,asthma,wheezing,shortness of breath. I will suggest you to give her some anti allergic medicine too like tablet Fexofenadine 150 mg once daily for 5 days, it will help her in improving her blockage of nose.About fever if it occurs ...
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