Rogaine

　　I've got a bald patch these days. I looked for hair growing agents in neighboring drugstores, but nothing attracted my eyes. I searched medical databases for some information on external medication. I knew a hair-growth drug in tablet form, but I prefer topical agents to oral medicine.
　　According to several papers on hair-growth, minoxidil is said to have a conclusive effect on hair-growth. Though there's a single product containing minoxidil in Japan, its cost is relatively high and so I ordered cheaper Rogaine from the U.S., before I visited Okinawa last week. When I came back home, the Rogaine had already arrived. After having a picture of my head taken from above as the control, I started using Rogaine today in the evening.
　　I'm going to apply it punctually twice a day for at least four months. I'm sure to take pictures of my head on a regular basis and I'll show you a series of pictures of my head in the summer.

(Vocabulary)
a bald patch  (頭の) はげた部分
patch (周囲と異なって見える) 部分, 箇所, (動物などの) 斑点
The cat's fur was mainly white, with black patches. その猫の毛は白地に黒いぶちがところどころにあった．
external medication / medicine 外用薬
topical
時事の, 話題になっている, 〈歌・冗談などが〉 時事問題を扱った
a topical issue 時事問題
《[名]の前でのみ》(専門) (薬剤が) 局所用の, 局部の
conclusive 〈証拠・根拠などが〉 決定的な, 疑う余地のない[反意] inconclusive
conclusively 疑う余地もなく, 明確に