Hi and thanks for your question,
and cough shall be classical symptoms of asthma. Response to steroids
is also supportive of this diagnosis. Doing a chest X ray shall make things clearer, exclude a concomitant lung infection
or cardiac origin of dyspnoea.
Doing a peak flow exams and a chest X ray shall be important in confirming diagnosis of asthma. Treatments are varied ranging from avoiding allergens, keeping warm to drugs. Consulting a pulmonologist or and internist shall be somewhat imperative.
Thanks and best regards,