Thanks for posting question on HCM,
Your husband has developed blisters due to over heat ,actually the fluid comes between epidermis
and dermis to protect inside tissues. You can puncture the large blisters by sterile 22 gauge needle then apply Fucidic acid cream and cover it with sterile gauze pad .if lesions gets pussy or fever
develops start tab augmentin625 mg tid for 7 days and tab ibuprofen
400 mg bid and get rest at home for few days.
Hope this will alleviate your anxiety
Dr sher bhutto