Allergy Testing for Hypersensitive me

Hi :) I'm a 19 year old freshman scholar in college that is going through multiple health concerns for the past 4 years, being diagnosed with 5 types of eczema/dermatitis (that affects my legs, arms, back, face, fingers and chest), asthma, dextroscoliosis, anemia and allergies (unknown). I have been struggling financially and physically due to my condition such as skin sores and allergies for 4 years now. Recently, my condition has worsened; I recently had an allergic reaction which affected my eyes and was brought to the doctor and was prescribed with expensive maintenance eye drops which I can't afford to maintain. Aside from the severe allergy attacks that caused me to have itchy hives everywhere on my body i have had and difficulty in breathing due to my asthma as well.The doctor suggested that an alternative to this was to see an immunologist/allergologist to get tested for allergies in able to identify what triggers my allergies and asthma to manage my flare ups. Skin and/or blood testing ranges up to Php 7000 - Php 9000 which is a great amount for a student to get a hold of. I would like to ask for your help to get my health back on track to be able to perform well as an independent scholar.